Morse code
01
摩尔斯电码, 摩斯密码
a system of communication that uses dots and dashes to represent letters, numbers, and symbols, enabling messages to be transmitted over long distances through sound or light signals
例子
The pilot used Morse code to send a message when the radio stopped working mid-flight.
飞行员在飞行途中无线电停止工作时使用莫尔斯电码发送了一条消息。



























