• The helmet crew is a professional team for treating the disaster accidents such as the mine fire, mine gas, mine dust, mine water, and roof, etc.

    矿山救护队处理矿井瓦斯煤尘扳等灾害事故专业队伍

    youdao

  • The helmet crew is a professional team for treating the disaster accidents such as the mine fire, mine gas, mine dust, mine water, and roof, etc.

    矿山救护队处理矿井瓦斯煤尘扳等灾害事故专业队伍

    youdao

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