signal-book
基本解释
- n.信号书
英汉例句
- A red light is usually a signal of danger.
红灯通常是危险的信号。 - I stood watching for the signal to change to green.
我站着等待交通信号转为绿灯。 - Let's set the clock by the radio time signal.
咱们照着收音机的报时信号把钟对一对。 - A red lamp is often a danger signal.
红灯常常是危险的信号。 - A reflected signal on a communication channel.
一种在通信信道上反射回来的信号。