opening driving是什么意思


中文翻译开拓掘进

网络释义

1)opening driving,开拓掘进2)development and driving of coal mines,煤矿开拓掘进3)digging excavation,掘进开挖4)a pioneering and progressing spirit,开拓进取5)pioneering and advancing,开拓前进6)tunnelling footage,开拓进尺

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