Measurement of Ultra-High Speed by Optical Multistage Cascade Frequency Reduction Technology by Heli Ma, Long Chen, Wei Gu, Cangli Liu, Longhuang Tang, Xing Jia, Tianjiong Tao, Shenggang Liu, Yongchao Chen, Xiang Wang, Jian Wu, Chengjun Li, Dameng Liu, Jidong Weng, Huan Liu

Subjects: “…shock loading…”
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Analysis of the load‐bearing characteristics of hydraulic supports for top‐coal caving under the impact of coal and gangue by Lianmin Cao, Yongxin Xu, Can He, Enming Zhang, Yingfa Miao

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Research on impact dynamic characteristics of scraper conveyor driven by permanent magnet limited torque reduction drive by Haoshuai FENG, Hongwei CUI, Zisheng LIAN, Lizhi SHI, Baolin CAO, Xingtao SU, Zhi LIU

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