step-by-step selectorstepping finder步进式: marching type选择: pick and choose; select器: implement; utensil; ware十进制步进式选择器: dial selector方式选择器: mode selector下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:步进式选择器,即可在微信中查询翻译