data channel propagation time数据: data; record; information信道: channel; route; chain传播: disseminate; propagate; spre ...时间: time; hour传播时间: propagation time; time of propagation; time of transit; time of travel; transit time; travel time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:数据信道传播时间，即可在微信中查询翻译
