rescue borehole是什么意思


中文翻译救护钻孔

网络释义

1)rescue borehole,救护钻孔2)Hole and protect the wall,钻孔护壁3)drill's protection,钻孔机保护4)Protect walls of foundation tunnel,钻孔桩护壁5)supporting by bored steel pipe pile,钻孔钢管桩支护6)drill platform of steel guide well,钢护筒钻孔平台

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