单词	深竹根靑
释义	同BLUE
随便看	signal lever signal liability signal light signal limiter signal line signal-line noise immunity signal-line-to-ground fault signalling signalling alphabet signalling appliance signalling by hand flag or arm signalling by hand flags signalling by hand flags--semaphore-- semaphore signalling signalling identifier / service id signalling key signalling light signalling rate signalling relaly set signalling relay set signalling set signalling speed signalling--speed signalling system signalling system 7 signalling system a.c.