【mining_retreating】什么意思_英语mining_retreating的翻译_音标_读音_用法_例句_在线翻译

mining retreating

后退式开采法

... longwall retreating 后退式长壁开采 mining retreating 后退式开采法 retreating blade 后行桨叶 ...

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The paper discusses the application and the effects of the coal mining method with retreating-longwall flexible shield support in steeply-inclined coal seam.

叙述了走向长壁后退式柔性掩护支架采煤法在急斜煤层中的应用及效果。

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