短語詞組短語Excavation method 開挖法;開挖方法;挖法tunnel excavation 隧道開鑿;隧洞開挖;隧道開挖deep excavation 深挖[工]open excavation 明挖;露天挖掘工程excavation support 巷道支架;開挖支護braced excavation 支撐開挖;支撐式挖掘excavation works 挖土工程;挖掘工程bench excavation 臺階開挖;臺階式挖掘bulk excavation 大量開挖;大規(guī)模挖土underground excavation 地下挖掘excavation work 挖土工程rock excavation 巖石開挖，開采巖石excavation depth 挖掘深度earth excavation 挖土工程；土方開挖 返回 excavation