shaft mine detail的意思|示意
美 / /
英 / /
矿井详细资料
shaft mine detail的网络常见释义
竖井矿 English translation for "竖井" ... 竖井井筒: vertical shaft detail>> 竖井矿: shaft mine detail>> 回风竖井: return shaft detail>> ...
shaft mine detail相关短语
1、 mine shaft drilling detail 井筒钻进