【超前平巷】英语怎么说_在线翻译

超前平巷

advance heading

... 超前灌浆 advance grouting 超前平巷 advance heading 前进式开采 advance mining ...

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advanced gallery

... advanced face 超前工祖 advanced gallery 超前平巷 advancement 掘进 ...

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[矿业] fore drift

... 超前孔钻头直径 diameter of pilot bit 超前平巷 fore drift 超前伸梁掘进法 spiling ...

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短语

超前小平巷 [矿业] pioneer tunnel

地球科学 | 能源科学技术

·2,447,543篇论文数据，部分数据来源于NoteExpress

简述了板石矿业公司上青矿640主运输平巷在硐口段施工过程中，克服地质条件复杂、多变的现状，采用撞楔超前支架法施工，硐口掘凿获得成功。

The geological condition is complicated and varies often. Using the method of pre-support through hammering wedge, the cave mouth digging work of No. 640 main transportation channel was successful.

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