i-frame join latency频道: frequency channel; channel时间: time; hour频道切换阈值: threshold for channel switching切换时间: switching time; switchingtime; transit time切换时间效应: transit time effect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:频道切换时间，即可在微信中查询翻译
