air shutter的用法和樣例：
例句
- An overall air control for each pipe in each room is available by fitting an air valve at the hot water supply.
把空氣閥安裝在溫水供給器時可綜合處理各房間管路內的空氣。 - The start is performed by direct injection of air into the cylinders through the starting air valves in the cylinder heads.
這個啟動，是由直接注射空氣進入氣缸，通過在氣缸正面的啟動空氣閥完成的。
