双流道叶轮 meaning in Chinese

two-blade impeller
two-passage impeller

Research on the designing method of double - flow - passage impeller
双流道叶轮设计方法研究
The paper introuduces the methods of making drawing of double channel impeller in classical works , points out some problems in the drawing and gives out a correct method of making drawing after combine atual situation
简述了现有文献中双流道叶轮的叶片绘型方法，指出文献中绘型存在的问题，并结合设计实例给出了正确的绘型方法。
Abstract : the paper introuduces the methods of making drawing of double channel impeller in classical works , points out some problems in the drawing and gives out a correct method of making drawing after combine atual situation
文摘:简述了现有文献中双流道叶轮的叶片绘型方法，指出文献中绘型存在的问题，并结合设计实例给出了正确的绘型方法。