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后退式回采
meaning in Chinese
back coming
bring back
retreating working
Examples
Drawing back of pillars
后退式回采
矿柱
Related Words
回采区放矿溜道
后退速度
后退焊
侵蚀后退
衰退后退
后退阶段
后退侵蚀
后退旋转
开始后退
海岸线后退
后退式长壁开采
后退式分裂襟翼
后退式回采矿柱
后退式回采煤柱
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