Shanghai Hua Tong Switchgear Works -A Major Switchgear Manufacturer for Power Transmission, Substation and Distribution in China

Founded in 1919, Shanghai Hua Tong Switchgear Works ("HTSW" in short for below) is one of large enterprises on state level. With high and new technology, it is designed as an export base for mechanical and electrical product of the Ministry of Machinery Industry as well. It has been awarded the honor of first grade factory in the competition for key and major project construction in Shanghai year by year,

Types, Metallogenic Environments and Characteristics of Temporal and Spatial Distribution of Copper Deposits in China

Based upon a comprehensive study of 123 copper deposits in China. this paper reaches the following conclusions: 1. The crust in China was solidified pretty late; with the accretion of the plate, the copper mineralization moved towards its margin in space and became successively younger in age. 2. The major copper ore types ever found in the world have mostly been discovered in China, in which the porphyry type seems to be the most important and the massive sulfide type in the transitional bed between marine clastic and carbonate rocks is clearly defined. 3. Carbonate strata are widespread in China and their deposition lasted for a long geological period, so the proportion of copper deposits occurring in them is large as compared with other parts of the world. 4. Seven metallogenic epochs can be recognized, in which the Mesozoic one plays the leading role and the middle(late) Palaeozoic and Cenozoic ones are next in importance. Mineralization was comparatively simple in the early geological period. and became diversified later on. In the early epochs copper deposits related to basaltic magmatism and metamorphosed marine sediments predominated, whereas in the later epochs those related to granitic magmatism and continental sedimentation were dominant. 5. There exist in China thirteen metallogenic provinces, of which the Lower Yangtze downwarping belt, Sanjiang fold system, Jiangnan axis and Xikang-Yunnan axis are of greater significance. 6. The crustal mobility in China was rather pronounced, the polycyclic evolution of the crust has resulted in such obvious phenomena as the inheritance of mineralization, the coexistence of various types and the superposition of different genetic types.

Regional Distribution of Cotton Fiber Quality in China

The fiber quality status is very important for super quality cotton production and diverse requirements of textile industry in China.In this study,the quality of cotton fiber samples which are collected from 13 major cotton production provinces between 2001 to 2005 were analyzed.Eight quality

Distribution Characteristics of Spermophilus dauricus in Manchuria City in China in 2015 through ‘3S' Technology

Plague is a virulent infectious disease in China. In this study, ＇3S＇ technology was used to perform spatial autocorrelation analysis and spatial interpolation analysis for Spermophilus dauricus （S. Dauricus, a species of ground squirrel） captured in Manchuria City in 2015. The results were visually inspected. During the two-month （May to July） plague surveillance in 2015, 198 S.

Distribution and Characteristics of Dinosaur Eggs in China

China is one of the most prolific countries for dinosaur material in the world, from skeletons to footprints and eggs. At present, China has documented more than 160 kinds of dinosaur, 35 genera and 39 ichnospecies of dinosaur footprints, and 17 genera and 44 oospecies of dinosaur eggs. The dinosaur eggs in China are mainly distributed in Xinjiang, Inner Mongolia, Ningxia, Gansu, Henan, Hunan, Hubei, Jilin, Liaoning, Shandong, Zhejiang, Jiangxi and Guangdong （Fig. 1）, especially in Xixia of Henan, Nanxiong of Guangdong and Yunxian County of Hubei, which have the widest distribution, the best preservation and the most diversity.

Development of Commodity Distribution Centres in China

In recent years, along with the rapid development and needs of China’s chain commerce, more attention has been paid to the development and construction of commodity distribution centres. Numerous businessmen have increasingly recognized that one of

Distribution and Development of Unconventional Gas in China

China is abundant in unconventional gas, and stunning growth of gas reserves and production therefore can be expected in foreseeable future because of the exploration and development of the gas. For the next 5 to 10 years, conventional gas will still dominate energy market but in a long run, its influence will weaken gradually as unconventional gas kicks in and expands. Though the exploration and development of unconventional gas in China is still at a very early stage, three Chinese oil majors have already assessed the resources, including tight gas, coal-bed methane, shale gas and gas hydrate.

The Mandatory Energy Efficiency Standard for Distribution Transformer soon Publicized in China

Owning to the rapid economy development in China and sharp increase of energyconsumption in recent years, energy shortage is increasingly apparent and becoming an importantobstacle to the sustainable development of our economy. With the aim to relieve the problem ofenergy shortage, the State Development and Reform Commission places the great emphasis ofenergy-saving work on improving energy efficiency of industrial energy-consuming products inenergy-saving work. The General Administration of Quality Supervision, Inspection and Quarantine ofthe People's Republic of China (AQSIQ) has issued and implemented two energy efficiency standardsfor three-phase induction motors and displacement air compressor, and will soon issue another twoenergy efficiency standards for clean- water centrifugal pumps and ventilation fans. The transformeris a kind of electric equipment widely used in many industries in national economy, with featuresof great amount of use, long period of operation and tremendous potential of energy-saving. So, itis necessary to develop the standard of energy efficiency for distribution transformers.

The Major Ore Clusters of Super-Large Iron Deposits in the World, Present Situation of Iron Resources in China, and Prospect

The metamorphosed sedimentary type of iron deposits（BIF） is the most important type of iron deposits in the world, and super-large iron ore clusters of this type include the Quadrilatero Ferrifero district and Carajas in Brazil, Hamersley in Australia, Kursk in Russia, Central Province of India and Anshan-Benxi in China. Subordinated types of iron deposits are magmatic, volcanic-hosted and sedimentary ones. This paper briefly introduces the geological characteristics of major super-large iron ore clusters in the world. The proven reserves of iron ores in China are relatively abundant, but they are mainly low-grade ores. Moreover, a considerate part of iron ores are difficult to utilize for their difficult ore dressing, deep burial or other reasons. Iron ore deposits are relatively concentrated in 11 metallogenic provinces（belts）, such as the Anshan-Benxi, eastern Hebei, Xichang-Central Yunnan Province and middle-lower reaches of Yangtze River. The main minerogenetic epoches vary widely from the Archean to Quaternary, and are mainly the Late Archean to Middle Proterozoic, Variscan, and Yanshanian periods. The main 7 genetic types of iron deposits in China are metamorphosed sedimentary type（BIF）, magmatic type, volcanic-hosted type, skarn type, hydrothermal type, sedimentary type and weathered leaching type. The iron-rich ores occur predominantly in the skarn and marine volcanic-hosted iron deposits, locally in the metamorphosed sedimentary type（BIF） as hydrothermal reformation products. The theory of minerogenetic series of mineral deposits and minerogenic models has applied in investigation and prospecting of iron ore deposits. A combination of deep analyses of aeromagnetic anomalies and geomagnetic anomalies, with gravity anomalies are an effective method to seeking large and deep-buried iron deposits. China has a relatively great oresearching potential of iron ores, especially for metamorphosed sedimentary, skarn, and marine volcanic-hosted iron deposits. For the lower guarantee degree of iron and steel industry, China should give a trading and open the foreign mining markets.

ON THE DISTRIBUTION OF THERMAL SPHINGS IN CHINA

The total number of thermal springs as mentioned in geographical records ofChinese provinces except Sinkiang together with those known through modernreports amounts to 512. Owing to the imperfect observation and inadequate description, however, it is often difficult to know their exact temperature and it is prbbalelethat a number of the so-called (?) (thermal springs) in Chinese literature arenothing but ordinary springs. A careful distinction results in the division of the following classes:

Geographical Distribution of Foreign Investment in China: Industrial Clusters and Their Significance

The incorporation of massive amounts of foreign direct investment (FDI) has been a major motive force behind the high-speed growth of the Chinese economy over the last decade. A high degree of geographical concentration in certain of this country is a salient feature of foreign invested enterprises (FIEs). FIEs in some industries are closely clustered in industrial zones ranging from several kilometers to more than 100 km in diameter. Such industrial clusters are a remarkable phenomenon among FDI industries. High FDI concentration is having a striking impact on the competitiveness of the enterprises involved and the regions where they are located.

Distribution and molecular variability of four tobacco viruses in China

Dear Editor,Plant viruses cause great economic losses to tobacco production(Dai et al.,2012).Many types of viruses have been reported to infect tobacco plants,including Tobacco mosaic virus(TMV)(Chen et al.,2014),Cucumber mosaic virus(CMV)(Dai et al.,2012),Tobacco

ON ASYMPTOTIC DISTRIBUTIONS FOR EXTREMES OF SURFACE TEMPERATURE AND SURFACE WIND IN CHINA

According to statistical inference method,the asymptotic distributions,concretely,Weibull and Gumbel distributions,for yearly extremes of surface temperature and wind in China were discovered.In this study we used the data of 173 stations for yearly maximum surface temperature and 158 stations for yearly minimum surface temperature and 83 stations for yearly maximum surface wind during the period from 1951 to 1982. Finally,the characteristics of the asymptotic distributions were discussed briefly.