The pump having the Angle adjustable vane is called the variable pitch vane type, and having the non-adjustable vane 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。

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Operational abilities and excitation force characteristics of a new national trailing-edge fixed-vane excitation system (FVES) with a slotted rotating cylinder were verified by flight tests.

针对一种新研制的带开缝旋转圆筒固定小翼激励系统，对其工作特性和激励力特性进行了试飞验证。

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Operational abilities and excitation force characteristics of a new national trailing-edge fixed-vane excitation system (FVES) with a slotted rotating cylinder were verified by flight tests.

针对一种新研制的带开缝旋转圆筒固定小翼激励系统，对其工作特性和激励力特性进行了试飞验证。

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