automatic switched channel自动: voluntarily; of one's own ac ...倒换: rotate; take turns信道: channel; route; chain自动倒换: automatic reserve activation自动倒: automatic focussing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:自动倒换信道，即可在微信中查询翻译
