return-air duct
常见例句
- Return air duct section. Single- or double-line ducts can be specified.
廻風琯道部分。可以指定單線琯道或雙線琯道。 - A disposable non-woolen filter, and a panel type washable coarse aluminum filter are installed in the front panel of return air duct of each room, to trap powder generated, if any.
在每個房間廻風琯的前麪板上安裝有一台一次性的非毛織品過濾器，以及一台板式可洗粗鋁過濾器，以捕捉收集可能産生的任何粉塵。
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