Stepka斯乔普卡stepn.步骤；台阶；舞步；步伐v.踏；以步测量step by step analysis分部分析step-by-step test阶段试验stepping on both feet双脚互踩式stepping-type relay分段动作继电器step up production.增加产量Stephania yunnanensisn.云南地不容step diffuser headbox方锥管布浆器stepping pulse signal步进脉冲信号step addition polymer逐步加成聚合物step model heat sinks台阶式热沉