colliery scale
常見(jiàn)例句
- The colliery, as one kind of the mine, is a kind of special geographical area, which is in large scale, wide area, big difference between geological condition and coal seam composition.
煤礦作為礦山的一種，是一種特殊的地理區(qū)域，規(guī)模龐大，面積較廣，地質(zhì)條件和煤層賦存條件差別很大。 返回 colliery scale