• 矿井直接排放大气中,不仅造成了资源浪费而且加剧温室效应

    Direct discharge of coal mine methane into the air not only causes waste of resource, but increases the greenhouse effect.

    youdao

  • 有些矿井利用大气压力引起空气自然流动有些矿井必须风机把空气压人井内。

    In some cases the difference in atmospheric pressure causes the air to circulate naturally; in others a fan must be used to pump air into the mine.

    youdao

  • 废弃矿井逸散到大气中的瓦斯温室气体同时也是一种煤层气资源

    Methane emitted from abandoned coal mines is a kind of greenhouse gas, and it is also a kind of CBM resource.

    youdao

  • 废弃矿井逸散到大气中的瓦斯温室气体同时也是一种煤层气资源

    Methane emitted from abandoned coal mines is a kind of greenhouse gas, and it is also a kind of CBM resource.

    youdao

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