The pump having the Angle adjustablevane is called the variable pitch vane type, and having the non-adjustablevane is called the fixed vane type.
循环水泵可分为拥有叶片角度调节装置的可调叶片式，和叶片不可调节的固定叶片式。
2
Abstract: the vibration increasing of adjustablevane double-stage axial flow fan caused by the rotors mass unbalance for the vane abrasion in long period running is a main malfunction.
摘要：针对动叶可调双级轴流风机长期运行中叶片磨损造成转子质量不平衡，引起风机振动增大的问题。
3
This paper introduces the general principle and the content of the measurement of the adjustable leading vane of aero_engine.