air-duct

基本解释

One of their air - duct has been blocked.
有一条输气管道堵塞了。
An abnormal air - duct is a danger to a patient.
一个异常的输气管对病人而言是危险的。
Air-conditioning can be quickly removed without dismantling stratification in the air-conditioning duct and evaporator inside the dust, mold and other harmful substances.
无须拆卸空调即可快速清除层积在空调风道及蒸发器内的尘土、霉菌等有害物质。

The Picnic room features a sizable picnic table, astroturf, and a paper-mache tree that was fashioned out of an air duct.
FORBES: Startup Hires Set Designers to Trick Out Office on a Dime
They soon found that duct tape leaked air so badly much of the cooling and heating was wasted--and that the tape frequently shrunk, dried up or separated.
FORBES: The Other Greatest Tool Ever
Consider media accounts of how WD-40 was used to extract a python from a bus exhaust pipe or a burglar stuck in an air duct (yes, he was arrested).
FORBES: Greasy Coca-Cola