shaft breaking

• 轴断裂

shaft breaking的用法和样例：

例句

1. The fracture is mainly caused by the lower hardness and strength which resulted from the Widmanstatten structure existing in the structure of the spline shaft.
   花键轴的显微组织中存在魏氏组织，导致其硬度和强度低于技术要求，是造成花键轴断裂的根本原因。