[矿业]煤矿开采 coal mining
煤炭开采 coal mining
采煤学 coal mining
煤层开采 coal mining
煤田开采 coal mining
煤矿开采 [矿业] coal mining
采煤机 [矿业] coal mining machine
[矿业]采煤机 coal mining machine
采煤沉陷区 sinkholes in coal mining areas
[矿业]水力采煤 hydraulic coal mining
采煤 coal mining
coal mining
以上为机器翻译结果，长、整句建议使用 人工翻译 。
他们在开采煤矿。
They are mining for coal.
youdao
我们利用更好的采煤法增加了煤炭产量。
We have raised the coal output by using better mining methods.
这些活动包括采煤、采石、石油钻探和向地下注入废水。
These include coal mining, quarrying, oil drilling, and the injection of wastewater into the ground.
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