coal seam基本解釋
名詞煤層
coal seam在線(xiàn)翻譯
coal seam網(wǎng)絡(luò )解釋
1.
1. 煤層：coal sampling 煤炭取樣 | coalseam 煤層 | coal separator 選煤機
2. 煤層(炭層)：煤層;炭層 coal bed | 煤層(炭層) coal-seam | 煤底土 coal seat
3.
3. 厚煤層：Pest有害的動(dòng)物,害蟲(chóng);有害的植物 | Coalseam厚煤層 | individuals matter個(gè)體問(wèn)題
coal seam英英釋義
noun
1. a seam of coal