瓦斯灾害是煤矿中最严重的灾害之一。

Gas disaster is one of the most serious disasters.

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地质灾害是煤矿区环境污染的主要发生源。

Environmental disasters are primary pollution source in the coal mine area.

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我已强调了石油，但石油问题事实上与减少对煤矿的依赖同样重要，即使是煤矿能够在当地获得。

I have emphasized oil, but it is in fact equally important to reduce dependence on coal, even if that is available locally.

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