ducting works管道敷设工程
fan ducting风扇通风槽
underground ducting地下管道
aspiration ducting导风筒
ducting arrangement通风道配置
Story ducting故事导入
ducting connection管路接头
intake ducting进气管道
cable ducting线通;电缆管道
N-COUNT（可数名词） A duct is a pipe, tube, or channel which carries a liquid or gas. 输送管道
...a big air duct in the ceiling.
…天花板上一根粗大的导风管。