Stepko斯特普科stepn.步骤；台阶；舞步；步伐v.踏；以步测量step by step computation逐步计算Stephania delavayi Diels地不容Stephania chingtungensisn.景东千金藤step-change operations阶跃step - down substation降压变电站step impedance resonator阶跃阻抗谐振器step induction regualtor分接头式感应调压器step recovery photodiode阶跃恢复光电二极管Stephanopyxis palmerianan.掌状冠盖藻step-by-step counter步进计数器,积蓄电路

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