1、煤矿业的
...coal-master 煤矿主coal-mining 煤矿业的coal-whipper 卸煤工人 ...
2、挖煤
... coal n.煤 coal-mining n.挖煤 quality n.质量, 品质, 性质 ...
3、采煤业
... The steel industry 钢铁工业 Coal-mining 采煤业 Renewable energy 可再生能源 ...
coal-mining explosive煤矿炸药
coal-mining method[矿业] 采煤方法
coal-mining engineer采煤工程师
Liaoyuan Coal-Mining辽源煤矿
coal-mining zone煤层采空区
coal-mining areas煤炭矿区
coal-mining methods采煤方法
opencast coal-mining露天采煤
coal-mining activities煤炭开采活动