Stepko斯特普科stepn.步骤；台阶；舞步；步伐v.踏；以步测量step acceleration method步长加速法Step of replace the seal更换密封圈步骤stepless variable radius无级变径step-iterative methods逐步迭代法step catalytic ozonation梯级催化氧化step by step instruction步进指令step distribution method阶梯分配法Stephania dicentriniferan.荷包地不容Step imprint lithography分步式压印光刻step induction regulator阶梯感应式电压调整器,步进感应式电压调整器