名词
中文翻译：煤矿气
同义词：
['coal gas', 'coalbed methane', 'coal-derived methane']
例句：
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1. The mine produces a significant amount of coal field gas.
这个矿井生产了大量的煤矿气。
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2. Coal field gas is a byproduct of the coal mining process.
煤矿气是煤炭开采过程的副产品。
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3.The gas was released from the coal field gas storage facility.
这种气体是从煤矿气储存设施释放出来的。