The double-acting variable-vane pump is a new type of variable pump.

双作用式变量叶片泵是一种新型变量泵。

youdao

This paper presented the working principle and structure of the double-action vane pump, analyzed its mechanism of variable displacement and characteristics of energy saving.

本文介绍了双作用叶片式二次元件的结构和工作原理，分析了其节能原理和特点。

youdao

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。

youdao

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。

youdao