短語詞組短語step -on-coil energization 步進式線圈激勵Step -delivery and on-time delivery 按階梯給藥和按時給藥Spring Step Streetwise Slip -On 彈簧步街頭滑動rearward -facing step on circular cylinder 圓柱面上后向臺階繞流 返回 step-on