return-air duct

基本解釋

Return air duct section. Single- or double-line ducts can be specified.
廻風(fēng)琯道部分?？梢灾付▎尉€(xiàn)琯道或雙線(xiàn)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(gè)房間廻風(fēng)琯的前麪板上安裝有一臺(tái)一次性的非毛織品過(guò)濾器，以及一臺(tái)板式可洗粗鋁過(guò)濾器，以捕捉收集可能産生的任何粉塵。
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