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词汇
coal roadway tunneling
释义
coal roadway tunneling
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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更新时间:2026/6/23 14:07:11