air channel

基本解释

Heater, cooler and temperature sensors are installed in the air channel.
风道内安装有加热器、制冷器、温度传感器。
Boiler is one of key equipments in power plant; the cold air channel system will directly affect the work of boiler.
锅炉是发电厂的关键设备之一，冷风道系统的安全平稳运行直接影响到锅炉的运行。
This paper proposes the design plan of automatic loading chest machine and introduces in detail the design of control system about the circuit, air channel and software, etc.
提出了全自动装箱机的设计方案，并从电路，气路和软件等方面具体介绍了控制系统的设计。

In addition, governments that would never allow foreigners to buy an over-the-air analogue channel seem willing to let them experiment with digital channels.
ECONOMIST: A world view The
Viewers can watch KPIX's HD newscasts over the air on channel 5.1, on Comcast cable channel 705 on DirecTV on channel 5.1 and on Dish Network on channel 5.1.
ENGADGET: San Francisco's CBS affiliate (KPIX) flips newscasts to HD