signalizevt.使显著；使突出；特别指出；表明；使信号化signaln.信号；标志v.(发信号)通知、表示adj.显著的signal regenerator信号再生器signaling out band带外振铃signal suppression信号抑制Signal Self-test信号自检signalized control信号控制signal composition信号剂signal measurement信号测量signal compression信号压缩signal description信号描述signal interrupter信号阻断器