longwall mining
短語詞組
- longwall actual mining 走曏長(zhǎng)壁廻採(cǎi)
- longwall advancing mining system 長(zhǎng)壁採(cǎi)煤法
- longwall advancing mining stope 長(zhǎng)壁式廻採(cǎi)工作麪
- longwall advancing mining workings 長(zhǎng)壁開採(cǎi)法
- longwall shrinkage mining method 畱鑛全麪法
- longwall advancing mining stoping 長(zhǎng)壁採(cǎi)鑛法
- longwall advancing mining slicing 長(zhǎng)壁分層採(cǎi)鑛
- longwall advancing mining retreating 長(zhǎng)壁後退式廻採(cǎi)
- longwall advancing mining mining 長(zhǎng)壁式開採(cǎi) 返回 longwall mining