push button selector器: implement; utensil; ware方式选择器: mode selector复式选择器: multiple selector; multiselector模式选择器: mode selector步进式选择器: step-by-step selector; stepping finder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:按钮式选择器，即可在微信中查询翻译
