可见信号 meaning in English
visible signal
visual indication
visual signal
Examples
- These nouns denote bright light , especially when it is a visible sign of combustion
这些名词意指强烈的光，尤指燃烧时的可见信号。 - " it is transmitted as electrical pulses of varied lengths or analogous mechanical or visual signals , such as flashing lights .
电码发送的形式是不同长度的电脉冲,或相似的机械式信号,或可见信号(如闪光) 。