Patents
- chengjingyi , 李彦琪,wanzhijun,雷龙飞,陈思霖,史毛宁,刘月,张书荣,周嘉乐,煤矿巷道围岩变形监测装置
- chengjingyi , 高魁东,张晓迪,姜考,徐温博,一种摩擦钻进式矿用巷道锚索安装设备
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