torsional fatigue strength

例句：

1. 1. The design of the gearbox iscrucial for its torsional fatigue strength.
   齿轮箱的设计对其扭转疲劳强度至关重要。
2. 2. Thematerial used in the construction of the bridgehas a significant impact on its torsional fatigue strength.
   桥梁建造中使用的材料对其扭转疲劳强度有显著影响。
3. 3. The torsional fatigue strength of the steel beam isan important factor in the design of thebridge.
   钢梁的扭转疲劳强度是设计桥梁时的一个重要因素。