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Zhongxi Toyo permanent magnet motor projectwas contracted to settle in Changshu National High-Tech Z
Zhongxi Toyo permanent magnet motor project was contracted to settle in Changshu National High-Tech Zone on May 14. Zhon......
基于GIS和RS技术,以重庆市忠县为例,对区域2002~2007年农地流转中耕地的用途变化的数量特点、空间差异进行了研究。研究表明:流转耕......