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Science & Technology Review  2021, Vol. 39 Issue (18): 122-128    DOI: 10.3981/j.issn.1000-7857.2021.18.016
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The progress of ultra-precision gear technology in China
LI Yingjie1, XING Junke1, WANG Hongpeng2
1. Department of Philosophy at Dalian University of Technology, Dalian 116023, China;
2. China Science and Technology Museum, Beijing 100012, China

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