The helical spring can no longer be used. 盘簧不能再用了。
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。
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。
