机械化支保
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动力支架
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综放支架
支架放置,stentpla... ... ) caving coal supporter 放煤支架 ) Powered support 综放支架 ) light-duty caving support 轻放支架 ...
链烘
矿业工程专业词汇英语翻译abandoned... ... powered prop 链烘鏀煴 powered support 链烘鍖栨敮淇? powerful 寮烘湁锷 …