发布时间:2025-01-20 04:47:04
住宅建筑中指从建筑物引入管到接户管之间为干管,接户管以后为支管。
公共建筑没用明确划分,一般一个用水单元内为支管。
武汉朗诗绿色街区采用的全新变频quotvrvquot中央空调系统耗电如何
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