英语词汇bench excavation怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	bench excavation
释义	bench excavation 简明释义台阶式挖掘网络释义 1 ?台阶开挖台阶开挖 2 ?台阶式挖掘台阶式挖掘短语 1 rock bench excavation 岩台开挖 2 Tri-bench excavation method 三台阶开挖法 3 heading and bench excavation 导洞与台阶开挖双语例句 1 In the excavation of foundation pit and foundation bench in shallow aquifer area, the problem of dewatering will be involved. 在含水层较浅的地区开挖基坑及基槽，都涉及到降水问题。 2 The excavation of upper chamber was conducted by the methods of bench excavating in layers and common explosion. 上室开挖采用分层梯段开挖和普通爆破方法。
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