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勘探平巷
meaning in English
exploratory drift
Related Words
平行平巷
勘探隧
钻进勘探
饱和勘探
勘探工程
勘探船队
基础勘探
勘探面积
勘探桩
勘探竖井
勘探目的层
勘探平洞
勘探平硐
勘探期
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