colour light signal

短语

词形变化

colour light signals 复数 colour light signals

别名

colour light colour-light signal color light signal

释义与例句

n.
  1. 1.

    An electric railway signal with colour aspects, showing either red or green in a 2-aspect signal, with the addition of a yellow or double yellow aspect (meaning caution) in 3- and 4-aspect signals.

    英国 交通