节距：除支撑圈外，弹簧相邻两圈对应点在中径上的轴向距离称为节距。
在此基础上，分析了单层碳纳米弹簧的弹性常数与弹簧结构参数（如管直径、弹簧直径、簧圈节距等）间的关系；
Based on this, the interrelations between the elastic coefficient and the structural parameters of the nanospring, such as tube diameter, spring diameter and coil pitch, are carefully studied.
变剧凸轮是控制弹簧的有效圈数，节距刀下面螺栓调节弹簧高度；
Variable play cam is the effective number of the control spring, and the height of the bolt adjusting spring;
应用推荐