期刊文献+
共找到315,409篇文章
< 1 2 250 >
每页显示 20 50 100
Attribute Reduction of Hybrid Decision Information Systems Based on Fuzzy Conditional Information Entropy 被引量:1
1
作者 Xiaoqin Ma Jun Wang +1 位作者 Wenchang Yu Qinli Zhang 《Computers, Materials & Continua》 SCIE EI 2024年第5期2063-2083,共21页
The presence of numerous uncertainties in hybrid decision information systems(HDISs)renders attribute reduction a formidable task.Currently available attribute reduction algorithms,including those based on Pawlak attr... The presence of numerous uncertainties in hybrid decision information systems(HDISs)renders attribute reduction a formidable task.Currently available attribute reduction algorithms,including those based on Pawlak attribute importance,Skowron discernibility matrix,and information entropy,struggle to effectively manages multiple uncertainties simultaneously in HDISs like the precise measurement of disparities between nominal attribute values,and attributes with fuzzy boundaries and abnormal values.In order to address the aforementioned issues,this paper delves into the study of attribute reduction withinHDISs.First of all,a novel metric based on the decision attribute is introduced to solve the problem of accurately measuring the differences between nominal attribute values.The newly introduced distance metric has been christened the supervised distance that can effectively quantify the differences between the nominal attribute values.Then,based on the newly developed metric,a novel fuzzy relationship is defined from the perspective of“feedback on parity of attribute values to attribute sets”.This new fuzzy relationship serves as a valuable tool in addressing the challenges posed by abnormal attribute values.Furthermore,leveraging the newly introduced fuzzy relationship,the fuzzy conditional information entropy is defined as a solution to the challenges posed by fuzzy attributes.It effectively quantifies the uncertainty associated with fuzzy attribute values,thereby providing a robust framework for handling fuzzy information in hybrid information systems.Finally,an algorithm for attribute reduction utilizing the fuzzy conditional information entropy is presented.The experimental results on 12 datasets show that the average reduction rate of our algorithm reaches 84.04%,and the classification accuracy is improved by 3.91%compared to the original dataset,and by an average of 11.25%compared to the other 9 state-of-the-art reduction algorithms.The comprehensive analysis of these research results clearly indicates that our algorithm is highly effective in managing the intricate uncertainties inherent in hybrid data. 展开更多
关键词 Hybrid decision information systems fuzzy conditional information entropy attribute reduction fuzzy relationship rough set theory(RST)
下载PDF
Weighted Forwarding in Graph Convolution Networks for Recommendation Information Systems
2
作者 Sang-min Lee Namgi Kim 《Computers, Materials & Continua》 SCIE EI 2024年第2期1897-1914,共18页
Recommendation Information Systems(RIS)are pivotal in helping users in swiftly locating desired content from the vast amount of information available on the Internet.Graph Convolution Network(GCN)algorithms have been ... Recommendation Information Systems(RIS)are pivotal in helping users in swiftly locating desired content from the vast amount of information available on the Internet.Graph Convolution Network(GCN)algorithms have been employed to implement the RIS efficiently.However,the GCN algorithm faces limitations in terms of performance enhancement owing to the due to the embedding value-vanishing problem that occurs during the learning process.To address this issue,we propose a Weighted Forwarding method using the GCN(WF-GCN)algorithm.The proposed method involves multiplying the embedding results with different weights for each hop layer during graph learning.By applying the WF-GCN algorithm,which adjusts weights for each hop layer before forwarding to the next,nodes with many neighbors achieve higher embedding values.This approach facilitates the learning of more hop layers within the GCN framework.The efficacy of the WF-GCN was demonstrated through its application to various datasets.In the MovieLens dataset,the implementation of WF-GCN in LightGCN resulted in significant performance improvements,with recall and NDCG increasing by up to+163.64%and+132.04%,respectively.Similarly,in the Last.FM dataset,LightGCN using WF-GCN enhanced with WF-GCN showed substantial improvements,with the recall and NDCG metrics rising by up to+174.40%and+169.95%,respectively.Furthermore,the application of WF-GCN to Self-supervised Graph Learning(SGL)and Simple Graph Contrastive Learning(SimGCL)also demonstrated notable enhancements in both recall and NDCG across these datasets. 展开更多
关键词 Deep learning graph neural network graph convolution network graph convolution network model learning method recommender information systems
下载PDF
Customization and Performance of Service-Oriented Manufacturing Information System: The Mediating Effect of Information System Flexibility
3
作者 Peng Niu 《Intelligent Information Management》 2021年第1期1-30,共30页
The purpose of this paper is to provide empirical evidence for the validity of the relationship between service-oriented manufacturing information system (SMIS) customization and performance from three aspects: data f... The purpose of this paper is to provide empirical evidence for the validity of the relationship between service-oriented manufacturing information system (SMIS) customization and performance from three aspects: data flexibility, process flexibility and system flexibility. We select some questionnaires from the third round of High-performance manufacturing (HPM) data to construct the construct, verify the reliability and validity of the construct, extract principal components, and analyze the mediating effect by using multiple chain linear regression and structural equation model. The results show that SMIS customization has a significant impact on its performance, and this effect works through its flexibility. More specifically, it is the multiple chain mediation effect composed of data flexibility, process flexibility and system flexibility. The importance of SMIS customization and flexibility to the organization is made clear, which helps practitioners understand the internal mechanism that affects SMIS performance, so as to use limited resources to improve system performance. 展开更多
关键词 Service-Oriented Manufacturing information system Customized information system Flexibility of information system information system Performance Mediating Effect
下载PDF
Evaluating and Addressing Interoperability Constraints in Health Information Systems for Enhanced Healthcare Delivery in Zimbabwe
4
作者 Prosper Tafadzwa Denhere Nelson Matanana +2 位作者 Munyaradzi Zhou Caleb Manjeese Talent Mawere 《Journal of Computer and Communications》 2024年第7期133-154,共22页
Interoperability constraints in health information systems pose significant challenges to the seamless exchange and utilization of health data, hindering effective healthcare delivery. This paper aims to evaluate and ... Interoperability constraints in health information systems pose significant challenges to the seamless exchange and utilization of health data, hindering effective healthcare delivery. This paper aims to evaluate and address these constraints to enhance healthcare delivery. The study examines the current state of interoperability in health information systems, identifies the key constraints, and explores their impact on healthcare outcomes. Various approaches and strategies for addressing interoperability constraints are discussed, including the adoption of standardized data formats, implementation of interoperability frameworks, and establishment of robust data governance mechanisms. Furthermore, the study highlights the importance of stakeholder collaboration, policy development, and technical advancements in achieving enhanced interoperability. The findings emphasize the need for a comprehensive evaluation of interoperability constraints and the implementation of targeted interventions to promote seamless data exchange, improve care coordination, and enhance patient outcomes in healthcare settings. 展开更多
关键词 Health information system INTEROPERABILITY Interoperability Constraints
下载PDF
School Level Information System (IS) Discontinuance Intention: A Case Study on Information System (IS) Discontinuance of Surigao State College of Technology SSCT
5
作者 Vrian Jay Ylaya 《Intelligent Information Management》 2020年第4期121-130,共10页
Educational institutions implement school information system (IS) solutions for efficient academic processes and improve the student experience, and thus tend to upgrade to new school IS, ceasing the use of old school... Educational institutions implement school information system (IS) solutions for efficient academic processes and improve the student experience, and thus tend to upgrade to new school IS, ceasing the use of old school IS. Extant studies of information system discontinuance are in organizational in general. This study is solely a school organization setting, specifically a thorough understanding of contributing factors that facilitate the intention of school information system (IS) discontinuance. Organizational level IS discontinuance intention OLIDI model was used as a lens and anchored by grounded theory. Semi-Structured interviews were used to collect data from school administrators and users of information system (IS) of Surigao State College of Technology. A qualitative statistics approach and coding of words are used to analyze the intention of IS discontinuance and provide model for school setting IS discontinuance. The findings show that system shortcomings, organizational initiative, environmental change, system investment, and institutional pressures were the critical determinants of increased intentions to replace the existing school information system (IS). The study findings are useful to school administrators to identify long term flexibility required for policies to overcome the capability of shortcomings that emerge over the system life span and underline risk associated with continued use of unsupported systems. 展开更多
关键词 Organizational Level information system Discontinuance Intention OLIDI information system (IS) information system (IS) Discontinuance
下载PDF
Web service based spatial forest information system using an open source software approach 被引量:3
6
作者 李世明 Joachim Saborowski +3 位作者 Jens Nieschulze 李增元 陆元昌 陈尔学 《Journal of Forestry Research》 SCIE CAS CSCD 2007年第2期85-90,共6页
For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available fore... For technical and other reasons there is a dilemma that data providers cannot find an appropriate way to redistribute spatial forest data and data users who need spatial data cannot access and integrate available forest resources information. To overcome this dilemma, this paper proposed a spatial forest information system based on Web service using an open source software approach. With Web service based architecture, the system can enable interoperability, integrate Web services from other application servers, reuse codes, and shorten the development time and cost. At the same time, it is possible to extend the local system to a regional or national spatial forest information system. The growth of Open Source Software (OSS) provides an alternative choice to proprietary software for operating systems, web servers, Web-based GIS applications and database management systems. Using open source software to develop spatial forest information systems can greatly reduce the cost while providing high performance and sharing spatial forest information. We chose open source software to build a prototype system for Xixia County, Henan Province, China. By integrating OSS packages Deegree and UMN MapServer which are compliant to the OGC open specifications, the prototype system enables users to access spatial forest information and travelling information of Xixia County which come from two different data servers via a standard Web browser and promotes spatial forest information sharing. 展开更多
关键词 Web service spatial forest information system Open Source Software Deegree UMN MapServer
下载PDF
Real-Time Information System of Power Plant Based on B/S Computing Mode 被引量:2
7
作者 徐治皋 高正平 司风琪 《Journal of Southeast University(English Edition)》 EI CAS 2002年第1期80-83,共4页
This paper introduces the system structure and work principle of the upgraded real time information system in Wangting Power Plant, and then expounds the realization way and function features of this system on B/S co... This paper introduces the system structure and work principle of the upgraded real time information system in Wangting Power Plant, and then expounds the realization way and function features of this system on B/S computing mode. The results of field application show the new system has good capability, reliability and expandability. 展开更多
关键词 power plant real time information system B/S mode DCS
下载PDF
Marine Engineering Geological Exploration Information System(MEGEIS):A GIS-based Application to Marine Resources Exploitation 被引量:3
8
作者 SU Tianyun LIU Baohua +2 位作者 ZHAI Shikui LIANG Ruicai ZHENG Yanpeng 《Journal of Ocean University of China》 SCIE CAS 2007年第3期226-230,共5页
Based on the ArcGIS geographic information system and the ORACLE database management system,this paper reports our studies on the technology of Marine Engineering Geological Exploration Information System(MEGEIS). By ... Based on the ArcGIS geographic information system and the ORACLE database management system,this paper reports our studies on the technology of Marine Engineering Geological Exploration Information System(MEGEIS). By analyzing system structure,designing function modules and discussing data management,this paper systematically proposes a framework of technol-ogy to integrate,manage,and analyze the seabed information comprehensively. Then,the technology is applied to the design and development of the Bohai Sea Oilfield Paradigm Area Information System. The system can not only meet the practical demands of marine resources exploration and exploitation in the Bohai Sea oilfield,but also serve as a preparatory work in theory and technology for the realization of the 'Digital Seabed'. 展开更多
关键词 geographic information system (GIS) Digital Oilfield marine resources exploitation Digital Seabed Marine Engineering Geological Exploration information system (MEGEIS)
下载PDF
The Overall Design of Land-Use Information System Based on GIS 被引量:1
9
作者 Zhang Guangyu Liu Yongqing(Institute of System Engineering, SCUT, Guangzhou 510641, P. R. China)(Received December 1, 1997) 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1999年第1期11-16,共6页
The land-use information system (LUIS) is a special geographical information system developed under the support of the geographical information system (GIS). It effectively combines the quantitative analysis with spac... The land-use information system (LUIS) is a special geographical information system developed under the support of the geographical information system (GIS). It effectively combines the quantitative analysis with space analysis, mixes the feature of the land-use data and figure de scription, achieves the mutual transfer of the data and figure, and provides some effective methods for the quantitative research and space analysis. The targets, methods and procedures of the overall design of LUIS and its structure function and characteristic are presented in this paper. It pro vides the guide and references for developing the special GIS suitable for the demand of land-use management. 展开更多
关键词 Land-use information system Geographical information system Overall design.
下载PDF
Research and Development of a Network-Based Intelligent Maintenance Information System 被引量:2
10
作者 ZANG Tie-gang, YANG Ming-zhong, GUO Shun-sheng Department of Mechanical Engineering, Wuhan University of Technology Wuhan 430070, P.R. China 《International Journal of Plant Engineering and Management》 2003年第2期74-79,共6页
A maintenance information system is an important part of equipmentmanagement. An intelligent maintenance information system (IMIS) is a synthesis of networktechnology, information technology and intelligent technology... A maintenance information system is an important part of equipmentmanagement. An intelligent maintenance information system (IMIS) is a synthesis of networktechnology, information technology and intelligent technology. The IMIS is used to finish flexiblemaintenance decision-making and fast maintenance planning, which helps enterprises to effectivelyreduce maintenance cost and increase working efficiency. Because the IMIS integrates advancedtechnologies, its performance is better than a traditional one. The difference between an IMIS and atraditional maintenance information system, and the functions, structure, important realizations,and application of an IMIS are discussed in this paper. 展开更多
关键词 maintenance information system intelligent maintenance information system(IMIS)
下载PDF
Establishment of management information system for SARS surveillance and control in Shaanxi province of China
11
作者 姜建辉 屈景辉 +4 位作者 徐德忠 闫永平 张治英 张恒 温亮 《Journal of Medical Colleges of PLA(China)》 CAS 2005年第3期182-185,共4页
Objective: To develop the management information system for SARS surveillance and control in Shaanxi province of China responding to the urgent needs for preventing and curing SARS disease. Methods: Based on geographi... Objective: To develop the management information system for SARS surveillance and control in Shaanxi province of China responding to the urgent needs for preventing and curing SARS disease. Methods: Based on geographic information system technology, the management information system for SARS disease in Shaanxi province of China was established using "SuperMap Objects 3.0" GIS development platform and Delphi 7.0.Results: The following functions were implemented in the system: the real-time collection and monitoring, management and analysis, dissemination of SARS disease information, and assistant decision-making support for prevention against SARS disease. Conclusion: The system that integrates epidemiology theories and GIS techniques together can provide a scientific, efficient means for monitoring, prevention of SARS disease in the future. 展开更多
关键词 SARS EPIDEMIOLOGY geographic information system management information system
下载PDF
Study of Panjin Wetlands Along Bohai Coast:(Ⅰ) the Information System of Wetlands Based on 3S Technique
12
作者 WANG Tieliang ZHOU Linfei YANG Peiqi ZHAO Bo 《Journal of Ocean University of China》 SCIE CAS 2008年第4期411-415,共5页
Based on previot, s stt,dies on Panjin wetlands along the coast of the Bohai Sea, this paper adopts RS, GIS and GPS techniques and establishes the information system for Panjin wetlands. The system involves many funct... Based on previot, s stt,dies on Panjin wetlands along the coast of the Bohai Sea, this paper adopts RS, GIS and GPS techniques and establishes the information system for Panjin wetlands. The system involves many functions, such as identification and classification of wetlands, calculation of the area of wetlands and storage of the information of the wetland management. Moreover, our study indicates that remote sensing technique is a useful tool for great macrography, speediness and accuracy to carry out the extraction, analysis, management and handling of information together with geography information system, which has prospective applications in similar kinds of research. 展开更多
关键词 remote sensing Geographical information system information system of Panjin wetlands: GPS
下载PDF
社会化网络服务世界中的有效竞争策略——Information Systems Research, Vol. 21, No. 3, September 2010综述
13
作者 刘杰 张诚 《管理学家(学术版)》 2011年第5期75-79,共5页
一个国家的企业与其他国家的企业在本土市场上开展的正面直接竞争过程,既是技术创新与市场营销有效结合并赢得顾客的过程,也是技术创新的竞争过程。面对日益激烈的竞争环境,尤其是高科技企业不仅需要平衡技术和市场策略的投入。
关键词 社会化网络服务 NO VOL information systems Research 竞争策略
下载PDF
The Role of Accounting Information Systems in Activating the Role of the Responsibility in the Jordanian Industrial Companies
14
作者 Mohammad Abdallah Fayad Altawalbeh Firas Na'el Rawhi Hashem Khalid Ali Ahmad Alduneibat 《Journal of Modern Accounting and Auditing》 2017年第1期1-7,共7页
The study aims at examining the role of accounting information systems in activating the role of the responsibility accounting in the Jordanian industrial companies. The study population has consisted of accounting ma... The study aims at examining the role of accounting information systems in activating the role of the responsibility accounting in the Jordanian industrial companies. The study population has consisted of accounting managers working in the Jordanian industrial companies, where a convenience sample of 50 managers has been taken and questionnaires have been distributed for them and then these questionnaires have been collected. The study has found that the attitudes of study sample have been positive toward the role of accounting information systems in activating the role of the responsibility accounting in the Jordanian industrial companies. The study has also found that there is a role for accounting information systems in activating the role of the responsibility accounting in the Jordanian industrial companies. The study also found that the role of accounting information systems in activating the role of the responsibility accounting in the Jordanian industrial companies does not vary depending on the educational qualification of employees. In addition, the role of accounting information systems in activating the role of responsibility accounting in the Jordanian industrial companies varies depending on the practical experience of the employee. The study has made several recommendations, including: focusing attention on the disclosure of social activities in industrial companies, in addition to focusing on the development of equipment used in information systems at the company. 展开更多
关键词 accounting information system responsibility accounting information system
下载PDF
The Grand Challenges in Information Systems
15
作者 Chandra Amaravadi 《Journal of Software Engineering and Applications》 2022年第4期103-115,共13页
The field of information systems has historically suffered from a pre-dominance of behavioral approaches. As a result, it is not surprising that in spite of decades of research, dozens of conferences and journals and ... The field of information systems has historically suffered from a pre-dominance of behavioral approaches. As a result, it is not surprising that in spite of decades of research, dozens of conferences and journals and thousands of researchers, very few breakthroughs have been achieved. This paper advocates a technical approach that focuses on improving existing systems in organizations by viewing them from the point of roles i.e. functions fulfilled by IS in organizations. These are understood as: 1) supporting operations, 2) providing information, 3) supporting decision making, 4) providing knowledge, 5) supporting knowledge and clerical work, and 6) supporting organizational design. It is generally agreed that the field’s understanding of fulfilling roles “1”, “2”, “3” and “6” is mature while understanding of areas “3” (for unstructured decisions), “4”, and “5” are still incomplete. The challenges in these areas are difficult problems that we refer to as grand challenges and discuss in this paper. 展开更多
关键词 Challenges in information systems information systems Challenges Research in IS IS Research Technology Support
下载PDF
Modeling commuters' route choice behavior under pre-trip information system 被引量:2
16
作者 李春燕 陈峻 +1 位作者 叶晓飞 郑竞恒 《Journal of Southeast University(English Edition)》 EI CAS 2012年第3期344-348,共5页
Research about the auto commuter's pre-trip route choice behavior ignores the combined influence of the real-time information and all respondents' historical information in the existing documents.To overcome this sh... Research about the auto commuter's pre-trip route choice behavior ignores the combined influence of the real-time information and all respondents' historical information in the existing documents.To overcome this shortcoming,an approach to describing the pre-trip route choice behavior with the incorporation of the real-time and historical information is proposed.Two types of real-time information are investigated,which are quantitative information and prescriptive information.By using the bounded rationality theory,the influence of historical information on the real-time information reference process is examined first.Estimation results show that the historical information has a significant influence on the quantitative information reference process,but not on the prescriptive information reference process.Then the route choice behavior is modeled.A comparison is also made among three route choice models,one of which does not incorporate the real-time information reference process,while the others do.Estimation results show that the route choice behavior is better described with the consideration of the reference process of both quantitative and prescriptive information. 展开更多
关键词 route choice pre-trip real-time information bounded rationality theory logit model
下载PDF
Internet based environmental monitoring information system and its application in Yili Prefecture 被引量:7
17
作者 Deng Xiang-zheng Liu Ji-yuan +1 位作者 Zhuang Da-fang Zhan Jin-yan 《Journal of Geographical Sciences》 SCIE CSCD 2002年第2期40-47,共8页
With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secon... With the development of Internet technologies, Internet Based Information System (IBIS) arises with more advantages: Firstly, it is convenient for users to use owing to the introduction of Internet technologies. Secondly, it benefits greatly the data dissemination and data sharing based on Internet. The most important but not the last is that we can establish the information service network supported by its technologies and the facilities of information highway. So, it would be significant to design IBIS to realize the data collection, sharing and dissemination on Internet. There are many factors affecting regional environment. So it is not easy to realize the integrated environmental monitoring. Given this, we designed the Internet based environmental monitoring information system. By the virtue of the Internet based environmental monitoring information system, the management and storage of environmental monitoring data would be easier, which lays the foundation to actualize the environmental monitoring efficiently. 展开更多
关键词 environmental monitoring GIS information system INTERNET Web GIS Yili Prefecture
下载PDF
Basic theory and key technologies for marine geographic information system 被引量:8
18
作者 SU Fenzhen YANG Xiaomei +2 位作者 XU Jun ZHANG Tianyu LUO Jiancheng 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2006年第2期80-86,共7页
Marine geographic information system (MGIS) has great ability to deal with the spatio-temporal problems and has potential superiority when it is applied to oceanography. Using the feature extraction of oceanic pheno... Marine geographic information system (MGIS) has great ability to deal with the spatio-temporal problems and has potential superiority when it is applied to oceanography. Using the feature extraction of oceanic phenomena as a case study, the functions of the MGIS are analyzed, and thus the position of MGIS in the oceanography is defined. Comparing the requirement of MGIS with that of the traditional GIS which has been developed in the terrestrial applications in the past four decades, the frame for the functions of MGIS is constructed. According to the established MGIS, some key technologies are discussed in detail with emphasis on the specialities which can distinguish the MGIS from the traditional GIS. 展开更多
关键词 marine geographic information system remote sensing function structure data mining
下载PDF
THE PLANNING AND MANAGEMENT INFORMATION SYSTEM FOR SMALL TOWN (TOWNMIS)——A CASE STUDY AT XIAOLAN TOWN, SOUTH CHINA 被引量:5
19
作者 Chen Shunqing State Key Lab. of Resources & Environment Information System Institute of Geography, CAS, Beijing 100101, P. R. ChinaHuang Ling Ge Wenlan Urban Planning Automation Center Guangzhou Urban Planning Bureau, Guangzhou 510030, P. R. China 《Journal of Geographical Sciences》 SCIE CSCD 1997年第1期11-20,共10页
Now, GISs are popular at most major cities along the coast in China. The lack of available digital geographic data is a serious bottleneck problem. This article first analyses the development characteristics of urban ... Now, GISs are popular at most major cities along the coast in China. The lack of available digital geographic data is a serious bottleneck problem. This article first analyses the development characteristics of urban planning and management information system in China, and proposes a method for establishing a planning and management information system for small town. By using GIS as core and integrating with microcomputer network, office automation (OA), computer aided design (CAD), and multimedia technology, a microcomputer information system (TownMIS) is implemented after 3 year design and development. It may be a first comprehensive system for the planning and management of small towns. Since the January of 1996, TownMIS has been actually used in Xiaolan Town, a coastal rich town in South China. This has provided perfect technical, managerial, operational and institutional references for resolving the contradiction of the fast growing installation of GIS sites and fewer actually running system. 展开更多
关键词 small town management information system Pearl River Delta.
下载PDF
Research on Mobile-Based Logistics Information System for Hainan Agricultural Products 被引量:1
20
作者 方纪华 王玲玲 +1 位作者 李玉萍 罗红霞 《Agricultural Science & Technology》 CAS 2014年第7期1235-1239,共5页
The current situation,information technology and problems of logistics for agricultural products were summarized.Some key technologies involved in mobilebased logistics information system for Hainan agricultural produ... The current situation,information technology and problems of logistics for agricultural products were summarized.Some key technologies involved in mobilebased logistics information system for Hainan agricultural products were analyzed,such as information classification and retrieval,user information authentication via QR code,and logistics information services based on WEB and mobile devices.Emphasis was given to study the design idea,content,method for the system. 展开更多
关键词 Agricultural product Logistics distribution Terminal services information security
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部