吊顶内排烟管道底标高,距吊顶面>250mm(多叶排烟口>320mm) [课程编码1921]

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吊顶内排烟管道底标高,距吊顶面>250mm(多叶排烟口>320mm)wzphyfihhboxlwsa
排烟口在吊顶上安装示意图（含墙上的远距离控制装置）pbqalmrueodvyrsjfnqqqleiihaeokiddajkjmtvffi
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