短语词组短语delay and jitter 时延和抖动delay -jitter 延迟抖动transfer delay jitter 传送延时抖动delay jitter control 延迟抖动控制TDJ Transfer Delay Jitter 传送延时抖动delay and delay jitter 延时与延时抖动jitter of delay time 延迟时间分散度 返回 delay jitter