Stepen施特彭stepn.步骤；台阶；舞步；步伐v.踏；以步测量step on a brake踩在刹车上, 刹车stepping switch步进开关,分级转换开关stepwise method分段逐次计算法,分段法stepping motors步进电机stepping stones踏步石Stepping jitter步进振荡stepless change连续变速step-out well扩边井step - method台阶法step-functionn.阶跃函数