signal

过去式：

动词过去式: signaled/signalled

更多词形：

名词: signaler | 动词过去式: signaled/signalled | 动词过去分词: signaled/signalled | 动词现在分词: signaling/signalling | 动词第三人称单数: signals/signals |

单词例句：

Is this announcement the signal of better times ahead?

宣布的这件事是否预示往後日子越过越好了？

Before the traffic signal turns to green light don't cross the street.

在交通信号轮换到绿灯以前不要穿过马路。

I'll cue you in (ie give you a signal to start) by nodding my head.

我一点头，你就开始。

The status or condition of being ready to run. A program, task, or hardware device that is in a ready condition needs only a start signal in order to begin operation.

准备就绪即可运行的状态。一个程序、任务或硬件设备在处于就绪状态时，只需要一个起动信号就开始工作。

The rise in prices was a signal for rebellion.

物价上涨引起了叛乱。

A channel over which pilot signal is transmitted.

可在其上传输导频信号的一种信道。

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。

An electronic device that converts one frequency of a radio signal to another.

变频器将无线电讯号从一种频率转换成另一种频率的电子装置

An audible and/or visible signal used to signify the existence of some error or abnormal condition in the system.

由音响或显示设备发出的信号，用以表示系统出现了错误或异常情况。