逐段转发信令,逐段链路信令link: n. 火把，火炬。 signal: n. 1.信号，暗号；信号器。 2.动机，导火线 (fo ...signaling link: 信号链路; 信令链路active signaling link: 激活信令链路analogue signaling data link: 模拟信令数据链路下载手机词典可随时随地查词查翻译
