signallingn.发信号；信号设备动词signal的现在分词形式.signaln.信号；标志v.(发信号)通知、表示adj.显著的signal-regulatory protein信号调节蛋白signaling link test message信令锭测试消息signal-tracing instrument信号跟踪仪器Signal Optimization Program信号优化程序signal conversion equipment信号转换设备,信号转换装置,符号转换装置signaling destination point信号终点signal transduction passway信号通路signal propagation velocity信号传播速度signal conditioning circuit信号处理回路Signal- to- noise Ratio信噪比