Practices have proved that effective gas extraction can improve ventilation management, gas control and reliability of work safety in the mine.

实践证明，通过对矿井瓦斯的有效抽采，可以使矿井的通风管理、瓦斯治理工作稳步提高，矿井安全可靠度增强。

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Practices have proved that effective gas extraction can improve ventilation management, gas control and reliability of work safety in the mine.

实践证明，通过对矿井瓦斯的有效抽采，可以使矿井的通风管理、瓦斯治理工作稳步提高，矿井安全可靠度增强。

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