signal的中文释义为信号，发信号，标志等，音标：[ˈsɪɡnəl]。例句：A signal failure contributed to the crash.信号灯故障导致了这次撞车事故。
signal 英 [ˈsɪɡnəl] 美 [ˈsɪɡnəl]
n. 信号；暗号；导火线
vt. 标志；用信号通知；表示
vi. 发信号
短语：
signal processing 信号处理
digital signal 数字信号
digital signal processing 数字信号处理
signal processor n. 信号处理机；讯息处理者
signal transmission 信号传输；信号发送
例句：
1.When I give the signal , run!
我一发信号，你就跑！
2.Don't fire until I signal.
等我发出信号后再开枪。
3.At an agreed signal they left the room.
收到约定的信号后，他们离开了房间。
4.A radio signal was sent to the spacecraft.
向宇宙飞船发出了无线电信号。
5.A signal failure contributed to the crash.
信号灯故障导致了这次撞车事故。
6.A thin cable carries the signal to a computer.
一条细电缆把信号传给一台计算机。
7.The signal will be converted into digital code.
信号将被转变成数字编码。
8.You must signal which way you are going to turn.
你要朝哪个方向转，必须发出信号。
9.The coded signal is received by satellite dishes.
电码信号通过卫星天线接收。
10.As soon as it was dark, Mrs. Evans gave the signal.
天一黑，埃文斯夫人就发出了那个信号。
11.Chest pains can be a warning signal of heart problems.
胸部疼痛可能是心脏病的报警信号。
12.A sensor channels the light signal along an optical fibre.
传感器沿光导纤维输送光信号。
13.A radio signal has both electrical and magnetic properties.
无线电信号既具有电的特性也具有磁的特性。
14.I'll say 'One, two, three, go!' as a signal for you to start.
我喊"一、二、三，开始！"作为你开始的信号。
15.Holly waited at a stoplight, impatient for the signal to change.
霍利在交通信号灯处不耐烦地等着信号改变。
16.Kurdish leaders saw the visit as an important signal of support.
库尔德领导人把这次访问看作是表示支持的重要信号。
17.Hunger is the body's signal that levels of blood sugar are too low.
饥饿感是体内发出的血糖浓度太低的信号。
18.The transmitters will send a signal automatically to a local base station.
发射台会自动将信号发送到地方基站。
19.When we turned the boat about, the signal began to bleep again constantly.
我们调转船头的时候，信号器又开始发出不停的嘟嘟声。
20.The recall of Ambassador Alan Green is a public signal of America's concern.
艾伦·格林大使的召回是美国关注此事的公开信号。
