短語(yǔ)詞組短語(yǔ)IP Packet Transfer Delay IP 包傳輸時(shí)延;分組傳送時(shí)延data packet transfer delay 數(shù)據(jù)分組傳送延遲IPTDmean -Mean IP packet transfer delay 平均IP分組傳送時(shí)延 返回 packet transfer delay