几乎任何可以发出声音的东西都被用来发信号.Almost anything that makes a noise has been used for signaling.水手们白日用旗,夜晚用灯,发信号.Sailors signal with flags by day and with lights at night.范阿莱姆, 在默兹河对岸, 还在用他的灯发信号.Van Alem , from across the Meuse, kep...

“发信号”的英语可以翻译为：singalling，signal，wigwag ...

“发信号”的拼音为：fā xìn hào...