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.
2
其主要是于所述外筒圆周壁最底部接近排水口的位置，设有一挡水板。
The outer cylinder mainly adopts that a breakwater is arranged at the position closed to a discharge outlet at the very bottom of the circle wall of the outer cylinder.
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