coal mining
词语： coal mining
解释： 采煤
词典： 消防专业英汉词典
coal mining 相关解释
coal mining 〔名词〕采煤,煤矿开采,采煤工程
采煤 coal cutting
采煤 coalcutting
采煤 coal getting;coal mining;coal pulling;coal winning;recovery of coal;win;win the coal
采煤 coal mining
采煤 coal pulling
采煤 recovery of coal;win