head sheave

• 端滑轮,天轮

head sheave的用法和样例：

例句

1. The paper introduces in detail the material selection , machining technology and geometrical calculation of the lining for the groove of the headgear sheave.
   详细介绍了矿井提升天轮槽衬的材料选用，加工工艺方案的设计及几何计算。