可以指定单线管道或双线管道。
回风管道部分。可以指定单线管道或双线管道。
Return air duct section. Single - or double-line ducts can be specified.
送风或回风管道部分。可以指定单线管道或双线管道。
Supply or return duct section. Single - or double-line ducts can be specified.
多个扇形段。可指定2到4个扇形段。可以指定单线管道或双线管道。
Multi fan section. From 2 to 4 fan sections can be specified. Single - or double-line ducts can be specified.
管道延伸。可指定送风管道或回风管道。可以指定单线管道或双线管道。
Duct extension. Supply or return duct can be specified. Single - or double-line ducts can be specified.
附加送风管道部分。可指定送风管道或回风管道。可以指定单线管道或双线管道。
Additional supply duct section. Supply or return duct can be specified. Single - or double-line ducts can be specified.
一个解决办法：在源头上建造有单线管道的厕所。丹麦和瑞典已经在试行这一方案了。
One solution: source-separated toilets (think: a little bowl within a big bowl), already being tried in Sweden and Denmark.
单线、双线管夹产品采用独特的连接方式，满足了不同组装方式的需求。
The single track, the double thread tube clamp the product to select the unique connection method, has met the different assembly way need.
单线、双线管夹产品采用独特的连接方式，满足了不同组装方式的需求。
The single track, the double thread tube clamp the product to select the unique connection method, has met the different assembly way need.
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