stepregulatorsteregulator阶: steps; stairs跃: leap; jump器: implement; utensil; ware第器: conditioner; controller; regulator阶跃: phase step; step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:阶跃第器，即可在微信中查询翻译
