signal to发往 ... 的信号signaln.信号；标志v.(发信号)通知、表示adj.显著的signal automata信号自动机signalling rate信号发送速度signal tracking信号跟踪signal oriented面向信号Signals filters信号滤波器signal priority信号优先Signaling Links信令链路signal envelope信号包络signaling parse信令解析signaling check签字校验