ductwork

n.

管道系统；

1. All ductwork is internal to the dryer box.
   所有管道系统内部的机框。
2. Forced air systems send heated air through ductwork.
   机械通风通过管道系统来输送热空气。

Ductwork
Ductwork
Ductwork
Geothermal, Water-Source Heat Pumps
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