disc of constant thickness

... disc of constant stress 等强度叶轮 disc of constant thickness 等厚度叶轮 disc of hyperbolic section 双曲线剖面叶轮 ...

... disc of constant stress 等强度轮盘 disc of constant thickness 等厚度轮盘 disc of hyperbolic section 双曲线截面叶轮 ...