本文根据电扇风叶的设计特点，提出在设计当量轴流式风扇的基础上，进行实测修正的方法。
Guided by the design characteristics of electric fan blades, the writer proposes a method of revision through true measurements on the basis of the design procedures of equivalent axial fans.
发动机是一个有两个转子和不同的定子叶片的轴流式涡轮风扇发动机。
The engine is an axial flow turbofan with two rotors and variable stator vanes.
YYFA系列为耐高温单相电容运转电机轴流式排气风扇，YS为三相异步电机轴流式排气电扇。
YYFA series high-temperature single-phase capacitor running motor axial exhaust fan, YS three-phase asynchronous motor axial-flow exhaust fan.
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