disk hub

• 轮毂

disk hub的用法和样例：

例句

1. Two new spokes and a hub must be made.
   我必须重新做两根轮辐和一个轮毂。
2. Generation of tool-path on the hub surface of impeller is researched.
   对整体叶轮轮毂面的刀位轨迹排布进行了研究。