min ying qi ye gong sheng ji li ji mo shi yan jiu
Xiao Jun Zheng
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min ying qi ye gong sheng ji li ji mo shi yan jiu

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zi 20 shi ji 70 nian dai yi lai ren men zhu jian yi shi dao zi ran sheng tai xi tong de ke xue li lun yong yu jie jue qi ta ke xue fu za xing de neng li he you shi sheng tai xue zhi shi wei ren men jie jue qi ye guan li xi tong wen ti zhi ming le yi ge xin de yan jiu fang xiang sheng tai gong sheng sheng wu xue shi yan jiu sheng wu zhi jian sheng wu yu huan jing zhi jian xiang hu guan xi de ke xue ju ti lai shuo gong sheng zhi liang ge huo duo ge bu tong zhong lei de you ji ti zhi jian de jin mi de chang shi jian de lian he zhe zhong sheng wu de lian he guan xi yu bu tong qi ye de lian he guan...