期刊文献+
共找到77篇文章
< 1 2 4 >
每页显示 20 50 100
Improving modeling of low-altitude particulate matter emission and dispersion:A cotton gin case study
1
作者 Zijiang Yang Michael N.Evans +3 位作者 Michael D.Buser Cathleen J.Hapeman Alba Torrents Derek P.Whitelock 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2023年第11期8-22,共15页
Monitoring and modeling of airborne particulate matter(PM)from low-altitude sources is becoming an important regulatory target as the adverse health consequences of PM become better understood.However,application of m... Monitoring and modeling of airborne particulate matter(PM)from low-altitude sources is becoming an important regulatory target as the adverse health consequences of PM become better understood.However,application of models not specifically designed for simulation of PM from low-altitude emissions may bias predictions.To address this problem,we describe the modification and validation of an air dispersion model for the simulation of lowaltitude PM dispersion from a typical cotton ginning facility.We found that the regulatory recommended model(AERMOD)overestimated pollutant concentrations by factors of 64.7,6.97 and 7.44 on average for PM 2.5,PM 10,and TSP,respectively.Pollutant concentrations were negatively correlated with height(p<0.05),distance from source(p<0.05)and standard deviation of wind direction(p<0.001),and positively correlated with average wind speed(p<0.001).Based on these results,we developed dispersion correction factors for AERMOD and cross-validated the revised model against independent observations,reducing overestimation factors to 3.75,1.52 and 1.44 for PM 2.5,PM 10 and TSP,respectively.Further reductions in model error may be obtained from use of additional observations and refinement of dispersive correction factors.More generally,the correction permits the validated adjustment and application of pre-existing models for risk assessment and development of remediation techniques.The same approach may also be applied to improve simulations of other air pollutants and environmental conditions of concern. 展开更多
关键词 Air quality Particulate matter Air dispersion modelling cotton gin
原文传递
The Mathematical Simulation of Brush Drums in a Dual Saw Cylinder Chamber Gin for the Purpose of Increasing the Quantity of Captured Cotton Fiber from Saw 被引量:5
2
作者 Azizov Shuhrat Mamatovich Karimov Abdusamat Peter Arras 《World Journal of Mechanics》 2013年第1期58-61,共4页
An analysis of the efficiency of the ginning of cotton fibers with two saw cylinders has been carried out. In comparison to a one-cylinder machine, the 2 cylinder approach can help to preserve the natural characterist... An analysis of the efficiency of the ginning of cotton fibers with two saw cylinders has been carried out. In comparison to a one-cylinder machine, the 2 cylinder approach can help to preserve the natural characteristics of cotton fiber and seeds. This technology allows economizing electricity and decreasing damage to fiber and also increases the productivity of the machine. 展开更多
关键词 gin SAW cotton BRUSH DRUM Fiber SAW CYLINDER
下载PDF
Influence of the Ginning Process on the Quality of Raw Cotton 被引量:1
3
作者 Mamadaliev Nodirbek Komilov Shukhratjon Akhmedxodjaev Khamit 《Engineering(科研)》 2021年第12期739-748,共10页
Technological progress consists of the development of improving techniques and technology. It occurs through the creation and implementation of new, more productive, economic and design-perfect machines, mechanisms, a... Technological progress consists of the development of improving techniques and technology. It occurs through the creation and implementation of new, more productive, economic and design-perfect machines, mechanisms, apparatus, devices, structures and the development of new technological processes. The direct process of technical progress lies in improving the instrument of labor, which is expressed mainly in increasing the power of the machine, the speed of its operation, improving and simplifying its design, in the transition to more advanced technical connections, as well as automating the control system of the main elements of automatic control systems, is a sensor giving information about the operating mode of technological machines. 展开更多
关键词 cotton Saw gin Feed Rollers Roll Box Seed Roll PRODUCTIVITY Pressure Density cotton Movement Speed
下载PDF
Motes percentage and ginning outturn as affected with cotton cultivar and location
4
作者 HossamEl-Din H. El-Feky 《Agricultural Sciences》 2010年第1期44-50,共7页
The present study was conducted to analyze cotton cultivar and location differences in motes, and to determine the relationships among these and ginning outturn. Therefore, the seed cotton of five promising hybrids na... The present study was conducted to analyze cotton cultivar and location differences in motes, and to determine the relationships among these and ginning outturn. Therefore, the seed cotton of five promising hybrids namely;G.77 × Pima S6 and G.84 × (G.74 × G.68) growing in [Kafr El-Sheikh - Kafr El-Dawar - Etay El-Barood - Damietta], G.89 × Pima S6 growing in [El-Sharkia - El-Gharbiya - El-Dakahliya - El-Monofiya], G.83 × (G.75 × 5844) × G.80 and G.90 × Australian growing in [Sohag - El-Minia - Beni-Sueif - El-Faium] were used in this study. The results obtained indicate that the varieties exhibited different behavior responses to environmental conditions. On the whole, environmental factors associated with differences in place of growth, appeared to have much more influence on the number of motes than did varietal factors. Most of the locks for the promising hybrids at the different locations tend to cluster around the mean of 6 or 7 seeds per lock. There is a fairly marked tendency for the lock index, lint weight and lint percentage to decrease as the motes percentage increase. On the other hand, most of the promising hybrids under study tend to increase in the seed index as the motes percentage increase. However, the increasing in seed index as a result of the increasing in motes percentage for some cotton cultivars growing at different environments could be explain the difference in behavior for these cotton cultivars in lint percentage. 展开更多
关键词 cotton CULTIVAR ginning Outturn LOCATION LOCK INDEX Motes Seed INDEX
下载PDF
The Study of the Movement of Cotton Particles and Mathematical Modeling of the Impact of It at the Ginning Point
5
作者 Jamoliddin Ergashev Khamid Akhmedhodjaev +2 位作者 Abdusamat Karimov Juramirza Kayumov Rashida Ergasheva 《Engineering(科研)》 2019年第11期768-776,共9页
This article studied the principles of movements in the horizontal part of the newly constructed ginning camera, which is created by the authors, of the cotton particles. During the movement, the cotton particles get ... This article studied the principles of movements in the horizontal part of the newly constructed ginning camera, which is created by the authors, of the cotton particles. During the movement, the cotton particles get affected by pressing to various surface and forceful turbulent and horizontal movements of the surface. Some foreign mixtures and additional unnecessary objects get separated by the turbulence of the various surfaces and movement of the paneled stripes. Ginning efficiency and the quality of the cotton will be improved as the defects of the cotton particles are removed. “Cotton particle + net surface” movement principle of the Cartesian coordinate system was examined based on the rows of Cartesian coordinate system, by dividing all sides of the system by m weight and has the following second ordered multiple gender differential formula. 展开更多
关键词 cotton Particle ginning Process ginning Camera SAW CYLINDER BELT CONVEYOR Plank
下载PDF
Improving Fiber Quality Output by Improving the Roll Box of the Gin Saw
6
作者 Sarimsakov Akramjon Isroilov Sardorbek Komilov Shukhratjon 《Engineering(科研)》 CAS 2023年第4期261-268,共8页
It has been proven that the increase in the productivity of the gin machine necessarily occurs along with the increase in the density of the raw material. However, with increasing density, productivity increases up to... It has been proven that the increase in the productivity of the gin machine necessarily occurs along with the increase in the density of the raw material. However, with increasing density, productivity increases up to a certain limit, and then productivity begins to decrease. In this article, the authors analyzed the scientific work on improving the quality of fiber. 展开更多
关键词 cotton Fiber Saw gin Density SAW DRUM Seed Husk SEED Fluff
下载PDF
Study of Cotton Seeds as a Processing Material
7
作者 Akhmedxodjayev Khamit Tursunovich Tadjibayev Muhammad Ahmadjanovich +2 位作者 Sharipov Khayrullo No’monjanovich Juramirza Abdiramatovich Kayumov Abduraximov Komiljon Karimovich 《Engineering(科研)》 2023年第11期782-791,共10页
The purpose of this research is to improve the qualitative and quantitative indicators of fiber, lint and seeds by improving the technology of preparing cotton seeds for processing. The state of the seeds after the gi... The purpose of this research is to improve the qualitative and quantitative indicators of fiber, lint and seeds by improving the technology of preparing cotton seeds for processing. The state of the seeds after the gin was studied and their division into fractions according to the degree of pubescence was recommended, the probabilities of the seeds emerging from the gin with varying degrees of pubescence were investigated, the geometric sizes and shapes of cotton seeds were studied. It has been established that when seeds come out of gin, they have different pubescence. The conditional movement of seeds without separation from the surface has been determined;found a formula describing the movement of seeds without detaching from the surface;the movement of seeds in a micro-flight is determined;the sizes of the cells of the mesh surface were determined as a function of d_c, α and on the speed of seed movement. The aim of the research work is to increase the yield of cotton fiber by improving the processing technology of germinated seeds, to improve the quality indicators of seeds and lint. In order to achieve this goal, a mesh surface device was created to sort the seeds into fractions. Sorting technology was developed on this device and operating modes were determined. In addition, the law of surface distribution of the fractions separated from the cotton stream moving along the surface of the net was determined, and based on the results of practical and theoretical research, a mode of sorting of cotton seeds was developed. 展开更多
关键词 FIBER LINT Raw cotton ginning Saw gin Working Chamber Raw Grate LINTING cotton Seeds
下载PDF
Theoretical Study of Seed Movement in Cotton Seeds Selection Device 被引量:1
8
作者 Obidov Avazbek Sultonov Mirzaolim 《Engineering(科研)》 2021年第10期544-553,共10页
The aim of the research work is to increase the yield of cotton fiber by improving the processing technology of germinated seeds, to improve the quality indicators of seeds and lint. In order to achieve this goal, a m... The aim of the research work is to increase the yield of cotton fiber by improving the processing technology of germinated seeds, to improve the quality indicators of seeds and lint. In order to achieve this goal, a mesh surface device was created to sort the seeds into fractions. Sorting technology was developed on this device and operating modes were determined. In addition, the law of surface distribution of the fractions separated from the cotton stream moving along the surface of the net was determined, and based on the results of practical and theoretical research, a mode of sorting of cotton seeds was developed. As a result, differential equations of the law of oscillation of seeds on parallel bases, taking into account the angle of inclination for the movement of cotton seeds on the sorting surface, were constructed and programmed on a computer to construct the trajectory of seeds. On the basis of the laws of motion, the optimal value of the angle of inclination on the horizontal, which gives the state of sorting of seeds, as well as the values of the amplitude and frequency of vibrations, was determined. 展开更多
关键词 cotton Seeds Slope Angle Sorting Device FRACTIONS Letuchka cotton ginning Amplitude Frequency ginning Sorting Sections Brush Drum MOVEMENT
下载PDF
Performance of a Microwave Cotton Bale Moisture Content Meter
9
作者 C. D. Delhom R. K. Byler 《Journal of Agricultural Science and Technology》 2011年第2期181-187,共7页
Measuring the moisture content of cotton bales is an important step in controlling the quality of cotton produced and sold around the world. A non-contact microwave-based bale moisture meter, the Vomax 851-B (Vomax I... Measuring the moisture content of cotton bales is an important step in controlling the quality of cotton produced and sold around the world. A non-contact microwave-based bale moisture meter, the Vomax 851-B (Vomax Instrumentation through Samuel Jackson, Lubbock, TX) has been commercially available but independent verification of these measurements has not been available. This new commercial meter was examined at a commercial facility using both laboratory produced bales and actual commercially produced bales. In the laboratory phase, bales were prepared by the Cotton Ginning Research Unit for measurement on the commercial instrument as well as by the oven reference method; the potential effects of bale orientation and bale packaging were also studied with these samples. The commercial phase involved collecting lint samples from 50 bales, over 5 days, during the 2007 ginning season. The collected bale samples were tested by the oven reference method for moisture content and those readings were compared to the microwave-based meter readings for moisture content. Moisture content, as measured, covered a wide range from 4.2% to 7.2 %, wet basis. The Vomax measurements tracked variation in bale moisture content and correlated well with the reference method; however the measurements showed higher moisture content than determined by the oven method. The Vomax 851-B shows potential to provide a reliable cotton bale moisture content for use in controlling the moisture content for commercial ginning of cotton. 展开更多
关键词 cotton cotton ginning MOISTURE moisture content moisture meter microwave sensing.
下载PDF
Investigation of the Ginning Process on ДП Series Saw Gin Stands 被引量:6
10
作者 Khamit Axmedxodjayev Akmal Umarov Kamola Ortiqova 《Engineering(科研)》 2019年第8期523-530,共8页
The article describes the research process of ginning, conducted at the stand of the saw gin of the DP series. The analysis of the roll box of saw gins of different companies was carried out, given the results of stud... The article describes the research process of ginning, conducted at the stand of the saw gin of the DP series. The analysis of the roll box of saw gins of different companies was carried out, given the results of studies to determine the speed and density of the seed roll in the roll box of the saw gin. A diagram is given for the dependence of the speed of the feed rollers on the incoming signal. 展开更多
关键词 SEED cotton ginning of cotton SAW gin Stand ROLL BOX SEED ROLL Profile of the ROLL BOX Speed of the Feed ROLLS Density of the SEED ROLL
下载PDF
Movement Differential Equation of Seed Roller which Has Been Installed Stake Accelerator on the Roll Box of Gin Machine 被引量:7
11
作者 Sarimsakov Akramjon Muradov Rustam +1 位作者 Umarov Akmal Kurbanov Dilmurat 《Engineering(科研)》 2018年第8期521-529,共9页
In the article stake accelerator has proposed on the side of the roll box in order to increase the productivity of the gin machine. The effect to the raw material of the proposed stakes was studied. Movement different... In the article stake accelerator has proposed on the side of the roll box in order to increase the productivity of the gin machine. The effect to the raw material of the proposed stakes was studied. Movement differential equation of the seed roller was made up and necessary graphics were taken based on laws. 展开更多
关键词 The cotton gin SEED Fiber Saw Gridiron ROLL Box SEED ROLLER Speed Quality Efficiency Productivity Equation Pressure Density Strength
下载PDF
The Saw Gin Stand with Adjustable Movement of the Roll Box 被引量:2
12
作者 Umarov Akmal Akhmedkhodzhaev Khamit +1 位作者 Sarimsakov Akramjon Kenjaeva Muazzam 《Engineering(科研)》 2018年第8期486-494,共9页
The article contains information about saw gin used at cotton processing plants. The influence of the density of the seed roll, which is formed in the roll box of the saw gin, on the load of the saw cylinder drive and... The article contains information about saw gin used at cotton processing plants. The influence of the density of the seed roll, which is formed in the roll box of the saw gin, on the load of the saw cylinder drive and on the technological characteristics of the machine is considered. As a result of the research, in order to preserve the quality characteristics of fiber and seeds, the author proposes a gin stand with a system for regulating the position of the roll box. 展开更多
关键词 SEED cotton ginning of cotton SAW gin STAND ROLL Box SEED ROLL Load Current Sensor Controller
下载PDF
Analysis of Speeds of Cylinders of Saw Gins and Linters and Determination of Critical Frequencies for them 被引量:3
13
作者 Akmal Umarov Kamola Ortikova Akramjon Sarimsakov 《Engineering(科研)》 2020年第10期715-722,共8页
With an increase in the density of the seed roll in the roll box of the saw gin, the quality indicators of the fiber and seed are poor, energy consumption increases, machine breakdowns increase, and when the density d... With an increase in the density of the seed roll in the roll box of the saw gin, the quality indicators of the fiber and seed are poor, energy consumption increases, machine breakdowns increase, and when the density decreases, the performance of the saw gin increases. Therefore, the density control of the seed roll is one of the important problems in the ginning process. The paper proposes a change in the rotation speed of the saw cylinder with a decrease in the diameter of its numerical linear speed and machine productivity. The article describes the problem of regulating the density of a seed roll in a saw gin of the DP series, provides an overview of work on regulating the operation of the machine, determines the dependence of the productivity of gins and linters on the state of the saw system in these machines, as well as changes in the linear speed of the saw by changing its diameter. Also, the critical speed of the gin and linter saw cylinder was determined to prevent resonance. In this case, the Simulation package of the SolidWorks computer program was used. The results of the study made it possible to adjust the speed of the cylinders when changing the diameter of the saws, which improved the productivity of the machine while maintaining the quality of the fiber and seed. 展开更多
关键词 cotton Saw gin Roll Box Seed Roll Productivity Rotation Frequency Critical Frequency Resonance Stiffness Mass Total Effective Mass SolidWorks Simulation
下载PDF
Theoretical Study of the Movement of Cotton Seed Flow along the Contour of the Rib 被引量:1
14
作者 Botir Mardonov Farkhod Ibrokhimov +2 位作者 Khamit Akhmetxodjayev Khayrullo Sharipov Mukhammad Tojiboyev 《Engineering(科研)》 2021年第10期526-535,共10页
Improving the efficiency of the process of separating fiber from cotton seeds by improving the working chamber of the gin is one of the important issues. The main way to increase the efficiency of sawn gin is to incre... Improving the efficiency of the process of separating fiber from cotton seeds by improving the working chamber of the gin is one of the important issues. The main way to increase the efficiency of sawn gin is to increase the fiber content in the mass of seeds in the working chamber with a uniform decrease in its density. This can be achieved by using grates with a concave working surface, which serves to move the seeds away from the rotating saws and accelerate the release of bare seeds from the working chamber. The article discusses the movement of seeds on the concave surface of the grate and determines the rational parameters of their working part. The article explores the proposed grate model, consisting of four geometric shapes, provides an analytical analysis of the geometric types. The dependence of the location of the last rectilinear part of the general contour on the shape of its convexity and concavity is determined. Cotton seeds move along the contour in the form of a stream. We assume that the thickness of the flow along the contour is constant and equal. We compose a unique equation of the flow in each section of the circuit. To determine the state of the flow, we denote its velocity, density and pressure in each section, respectively. Let us determine the flow motion along the contour with respect to the arc. 展开更多
关键词 cotton Saw gin Grates ginning Fiber SEEDS Concave Surface
下载PDF
Improvement of the Process of Separation of Cotton Fiber from Seeds
15
作者 Sharibboy Ergashev Khayrullo Sharipov Olimjon Sarimsakov 《Engineering(科研)》 CAS 2022年第12期567-577,共11页
The differential equation, obtained as a result of the theoretical study of the movement of the bare seed on the surface of the grate of the saw gin, made it possible to determine the trajectory of the movement of the... The differential equation, obtained as a result of the theoretical study of the movement of the bare seed on the surface of the grate of the saw gin, made it possible to determine the trajectory of the movement of the seed. The rib is one of the main working bodies of the saw gin. It serves for the free passage of the saw blades through it into the working chamber, for the withdrawal of the fiber caught on the saw teeth after separating it from the seed. A number of studies have been carried out to improve the working elements of the saw gin. The purpose of the research is to create the possibility of timely withdrawal of bare seeds from the working chamber of the saw gin by creating a concavity on the working surface of the grate. The use of the Euler equation for the movement of bare cotton seed along the grate contour, taking into account its speed V, density ρ, pressure P, made it possible to obtain a graph of seed distribution along the grate contour. An experimental 30-saw gin was developed and manufactured, the research carried out on it allowed to determine the rational parameters of new grates, which are recommended for introduction into production. The dependence of the location of the rectilinear part of the general contour on the shape of its convexity and concavity is determined. Based on the above equations, using separate functions, we present the view of the grate profile in the coordinate system modeled on the MAPLE-17 program. 展开更多
关键词 cotton Saw gin Grates ginning Fiber SEEDS Concave Surface Seed cotton ginning of cotton Roll Box Seed Roll Profile of the Roll Box Speed of the Feed Rolls Density of the Seed Roll
下载PDF
Determination of the Influence of the Speed of the Saw Cylinder of the Saw Gin on the Density, Speed and Composition of the Seed Roll
16
作者 Akmal Umarov Hamit Akhmedhodjaev +1 位作者 Kamola Ortiqova Zohida Nasriddinova 《Engineering(科研)》 2022年第3期131-137,共7页
The article consists of studying the influence of the speed of the saw cylinder on the quality of the fiber and the productivity of the machine, as well as on the change in the density and composition of the seed roll.
关键词 Seed cotton ginning of cotton Saw gin Stand Roll Box Seed Roll Profile of the Roll Box Speed of the Feed Rolls Density of the Seed Roll
下载PDF
Investigation of the Properties of Fibrous Cotton Seeds, for Sorting on a Mesh Surface 被引量:3
17
作者 Avazbek Obidov Khamid Akhmedhodjaev +1 位作者 Olimjon Sarimsakov Qurbonali Holikov 《Engineering(科研)》 2018年第9期572-578,共7页
In the article the research of cotton seeds for the purpose of increasing the fiber in the enterprise is investigated, separated from the mass of the derivatives of ginning of fibrous seeds by means of effective clean... In the article the research of cotton seeds for the purpose of increasing the fiber in the enterprise is investigated, separated from the mass of the derivatives of ginning of fibrous seeds by means of effective cleaning and sorting on the mesh surface. 展开更多
关键词 cotton SEEDS cotton Fiber Litter Technical SEEDS SOWING SEEDS LINT gin SORTING Moisture Selection Variety FIBROUS SEEDS
下载PDF
Statically Analysis of the Stress State of Saw Gins Consisting of 90, 100, 110, 120, 130 Saws
18
作者 Azizov Shuhrat Mamatovich Uzoqov Farxodjon +2 位作者 Shermuhammad Alijonov Hasanov Ahmadjon Mirzakarimov Mirsharofiddin 《Engineering(科研)》 CAS 2022年第8期329-338,共10页
In the primary processing of cotton, it is important to increase the productivity of ginning and reduce the wear of working bodies. The working body of the genie is the working chamber, the saw cylinder and the rib gr... In the primary processing of cotton, it is important to increase the productivity of ginning and reduce the wear of working bodies. The working body of the genie is the working chamber, the saw cylinder and the rib grate. The main wear is on the saw cylinder shaft and saw teeth. The wear of these parts leads to additional material costs, as well as to a decrease in the quality of the fiber. The wear of the shaft is affected by the number of saws and the mass of raw cotton in the working chamber of the gin. To prevent wear of the saw cylinder, the article determines the optimal static load on the shaft by calculating saw gins consisting of 90, 100, 110, 120, 130 saws. An analysis of tables shows that maximum value to bending shows 120 and 130 saws cylinder, because shaft bending angles along the length appear. This leads to a 2% - 3% reduction in the distance between the saws, serves for the premature wear of the saw, the exit of short fibers. 展开更多
关键词 RAW cotton SHAFT Statically ANALYSIS SAW gin
下载PDF
Design and Development of Seed Cotton Pre-Cleaner Machinery
19
作者 Abdurasul Pirnazarov 《Engineering(科研)》 2021年第12期656-666,共11页
The process of transporting and cleaning seed cotton is carried out by passing raw materials through many machines. The efficiency of a cleaner machine depends on many factors and mainly machine design. The cleaner ma... The process of transporting and cleaning seed cotton is carried out by passing raw materials through many machines. The efficiency of a cleaner machine depends on many factors and mainly machine design. The cleaner machines clean the seed cotton using mechanical forces, and these forces have a negative effect on the quality of the fiber and seeds. This paper provides results of the experimental research to improve the technology of pre-cleaning seed cotton from foreign matters. The results of research were conducted to reduce the number of machines in the cleaning process and design a new pre-cleaner machine. 展开更多
关键词 Seed cotton CLEANING ginning FIBER Pneumatic Conveying
下载PDF
Modeling the Process of Transportation of Seed Cotton through the Parameters of the Food Zone
20
作者 Akmal Umarov Dilmurat Kurbanov +1 位作者 Muazzam Kenjayeva Botir Mardonov 《Engineering(科研)》 2021年第9期493-501,共9页
In the process of separating the fiber from the seed, the density of the seed roll in the roll box of the saw gin is constantly changing. With an increase in the density of the seed roll, the quality indicators of fib... In the process of separating the fiber from the seed, the density of the seed roll in the roll box of the saw gin is constantly changing. With an increase in the density of the seed roll, the quality indicators of fiber and seed deteriorate, energy consumption increases, machine breakdowns increase, and with a decrease in density, the productivity of the machine decreases. For this reason, the regulation of the density of the seed roll is one of the important problems in the ginning process. For this, the speed of rotation of the feed rollers changes, which, with an increase in speed, the mass of cotton increases, and with a decrease, it decreases. Thus, the density of the seed roll is controlled. The article describes the problem of regulating the density of a seed roll in a saw gin of the DP series, an overview of the work on regulating the operation of the machine is given. In this work, the force of cotton pressure between two feed rollers is also theoretically investigated. Graphs of changes in the force of cotton pressure between two rollers are plotted depending on various initial pressure forces. The results of the study will be used in the further improvement of the cotton feeding regulation in order to maintain the optimum density of the seed roll, which will preserve the quality of the fiber and seeds while increasing the productivity of the machine. 展开更多
关键词 cotton Saw gin Feed Rollers Roll Box Seed Roll PRODUCTIVITY Pressure Density cotton Movement Speed Coefficient of Elasticity of cotton Mass
下载PDF
上一页 1 2 4 下一页 到第
使用帮助 返回顶部