叶轮极大直径设计法
impeller diameter maximum approach
叶轮轮毂端直径
impeller hub end diameter
变矩器叶轮轮毂
converter impeller hub
torque converter impeller hub
固定叶轮直通式旋风分离器
fixed impeller straight through cyclone
三叶叶轮
Triplicate blade impeller
双流道叶轮叶片绘型
The Drawing of Vane of Double Channel Impeller