英语词汇“coal roadway excavation”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	coal roadway excavation
释义	coal roadway excavation 基本例句煤巷掘进 Outburst prevention technique of excavating in coal seam will be directly concerned colliery safety production and excavates taking over.摘要突出煤层煤巷掘进防突直接关系到煤矿的安全生产和采掘接替。
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