bow-tupe spring

例句：

1. 1. The new car has a bow-tupe spring that makes it very smooth.
   这辆新车有一个弹簧，让驾驶非常平稳。
2. 2.The old house still has the original bow-tupe springs in its windows.
   这所老房子的窗户里仍然有原始的弹簧。
3. 3. The bow-tupe spring is responsible for the car's responsiveness and handling.
   这个弹簧负责汽车的反应性和操控性。