发布时间:2025-01-31 20:13:28
避开人员经常停留或通行的地方。事故通风的排风口应尽量避开人员经常停留或通行的地方,与机械送风系统进风口的水平距离不应小于20m;当水平距离不足20m时,排风口必须高于进风口,并不得小于6m,如果排除的是可燃气体或蒸汽,排风口应距离可能溅落火花的地点20m以上。
国庆节快到了想给爷爷买个礼物爷爷岁数大了想给他买个制氧机但是对制氧机这个产品不是很了解
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