prebored hole是什么意思


中文翻译预钻孔

网络释义

1)prebored hole,预钻孔2)pre-splitting hole,预裂钻孔3)drilled anchor,预钻孔锚4)borehole advance grouting,钻孔预注浆5)pre-drilled sinking-pile,预钻孔沉桩6)soil taking of pre-bored perforation,预钻孔取土

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