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