coal mining
詞語: coal mining
解釋: 採煤
詞典: 消防專業英漢詞典
coal mining 相關解釋
coal mining 〔名詞〕採煤,煤礦開採,採煤工程
採煤 coal cutting
採煤 coalcutting
採煤 coal getting;coal mining;coal pulling;coal winning;recovery of coal;win;win the coal
採煤 coal mining
採煤 coal pulling
採煤 recovery of coal;win