verb🔗Share发出信号，示意。 To indicate; to convey or communicate by a signal."The crossing guard was signalling cars to stop so the children could safely cross the street. "那位交通协管员正在示意车辆停车，以便孩子们安全过马路。communicationsignaltechnologyChat with AIVocabulary GamePractice Reading
verb🔗Share发信号，示意。 To communicate with (a person or system) by a signal."Seeing the flames, he ran to the control room and signalled headquarters."看到火焰后，他跑到控制室，向总部发出了信号。communicationsignaltechnologyChat with AIVocabulary GamePractice Reading
noun🔗Share信号传输，信号发送 The use of signals in communications, especially the sending of signals in telecommunications"The train's reliable signalling ensured a safe and timely arrival at the station. "火车的可靠信号传输系统确保了列车安全准时到达车站。communicationtechnologysignalelectronicsChat with AIVocabulary GamePractice Reading
noun🔗Share信号系统，信号设备 The signals and associated equipment required for their operation."The train's delay was due to maintenance work being done on the signalling along the track. "火车的延误是由于正在进行轨道沿线信号系统维护工作造成的。signaldevicetechnologysystemcommunicationmachinetechnicalChat with AIVocabulary GamePractice Reading
