There are many kinds of spring in spring suspension devices, but the most used spring in rolling-stock is cylindrical spiral spring.
铁路车辆用弹簧的种类虽多，但最常用的还是簧料截面为圆形的螺旋弹簧。
There are many kinds of spring in spring suspension devices, but the most used spring in rolling-stock is cylindrical spiral spring.
铁路车辆用弹簧的种类虽多，但最常用的还是簧料截面为圆形的螺旋弹簧。
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