可指定送风管道或回风管道。

Supply or return duct can be specified.

youdao

回风形式还需依净化室的标准级别来决定。

What kinds of air return should be used depend on standard of clean room.

youdao

送风或回风管道部分。

Supply or return duct section.

youdao

回风管道部分。

Return air duct section.

youdao

您的系统运行时是采用100%新风方式，还是回风参与再循环的方式？

Is your system operating with 100% fresh air, or is the system operating in recirculation?

youdao

你们中的一个得给我带回纸包着的火，一个带回纸里的风，第三个带回风中的音乐。

One of you shall bring me some fire wrapped in paper, the other shall bring me some wind in a paper, and the third shall bring me some music in wind.

youdao

你们中的一个得给我带回纸包着的火，一个带回纸里的风，第三个带回风中的音乐。

One of you shall bring me some fire wrapped in paper, the other shall bring me some wind in a paper, and the third shall bring me some music in wind.

youdao