shaft deepening是什么意思


中文翻译立井开凿

网络释义

1)shaft deepening,立井开凿2)shaft extension,立井开凿3)shaft,立井4)vertical shaft,立井5)vertical well,立井6)mine shaft,立井7)subvertical,立井8)vertical shaft construction,立井施工9)shaft deepening,立井延深10)shaft of coal mine,煤矿立井

用法例句

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