Methods of measurement under conditions different from broadcast signal standards on receivers for television broadcast transmissions 电视广播接收机在非标准广播信号条件下的测量方法
Recommended methods of measurement on receivers for television broadcast transmissions ; part 6 : measurement under conditions different from broadcast signal standards 电视广播接收机的推荐测量方法.第6部分:不同广播信号标准条件下的测量
There are two more authoritative group pursuing in the research on ip telephone , that is , itu - t and ietf . so this leads to two signaling standards of ip telephone , viz 目前研究ip电话最具有影响力的研究组织为国际电联电信分会( itu - t )和internet工程任务组( ietf ) 。