variable pitch cylindrical helical spring

例句：

1. 1. The variablepitch cylindrical helical spring is used in the car's suspension system to improve its performance.
   这种可变音调圆柱螺旋弹簧被用于汽车悬挂系统中，以改善其性能。
2. 2. The variable pitch cylindrical helical spring is a crucialcomponent of the car's suspension system.
   这种可变音调圆柱螺旋弹簧是汽车悬挂系统的关键部件。
3. 3. The variablepitch cylindrical helical spring helps to absorb shock and vibration, providing a smoother driving experience.
   这种可变音调圆柱螺旋弹簧有助于吸收震动和振动，提供更平稳的驾驶体验。