• 提出在楼梯口采用防空气代替挡烟垂壁速度小于1

    Puts forward a smoke control mode of applying smoke-preventing air curtain substituting for ceiling screen and down air flow with velocity no lower than 1.

    youdao

  • 提出在楼梯口采用防空气代替挡烟垂壁速度小于1

    Puts forward a smoke control mode of applying smoke-preventing air curtain substituting for ceiling screen and down air flow with velocity no lower than 1.

    youdao

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