protection casing是什么意思


中文翻译护壁套管

网络释义

1)protection casing,护壁套管2)casing pipe protection,套管护壁3)the hole wall protection method with casing,套管护壁法4)steel sleeve wall protection,钢套管护壁5)bilateral double-pipe protecting borehole wall blasting,双侧套管护壁6)unilateral double-pipe protecting borehole wall blasting,单侧套管护壁

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