live broadcasting短语¹¹⁴⁴⁶⁷⁺⁴ 基本例句 现场直播 Because of the particularity of IPTV service, the problem that how to carry IPTV service especially live broadcasting service in telecom network becomes a hotspot issue in this field. 由于 IPTV业务的特殊性，如何在电信网上承载 IPTV业务，尤其是直播业务，成为业界研究和关注的问题之一。 cnki