The coil,or helical,spring consists of a wire or rod wound into a helix and is primarily intended for axial direct compression or tension loads. 卷簧，或者说螺旋形弹簧包括一条盘成螺旋形的金属丝盘条，它起初是用于轴向直接压力和拉伸。
The helical spring can no longer be used. 盘簧不能再用了。
After removing the first check from the backflow valve body, place on a flat surface with the coil spring facing up. 从防回流阀阀体上拆卸第一止回阀后，要使螺旋弹簧面朝上放在平面上。
The multilink coil spring suspension wasn't too stiff or too loose, which would make the driver feel uncomfortable. 在多重螺旋弹簧悬架不是太硬或太松，这将使司机感到不舒服。
