preheated air

• 预热空气

preheated air的用法和样例：

例句

1. The heated-air system provides rapid heating of the air entering the carburetor when the engine is cold.
   发动机处于冷态时，预热空气装置能迅速提供热的空气进入化油器。
2. Flame properties of propane in varying air temperature and varying oxygen content air are observed.
   观察了丙烷在不同预热空气温度及不同含氧浓度气氛中的火焰特征。