catenary action

例句：

1. 1.The catenary action of the cable is responsible for its flexibility.
   电缆的凯特纳动作使其具有灵活性。
2. 2.In this experiment, we observed the catenary action of the spring.
   在这个实验中，我们观察到弹簧的凯特纳动作。
3. 3.The catenary action of the cable is crucial for the stability of the bridge.
   电缆的凯特纳动作对于桥梁的稳定性至关重要。