I wait for the light to change .
我等候信号灯变换。
interruption signal
中断信号-等候工作
Hurstwood climbed up on the platform in the gloomy barn and waited for a signal.
他在阴暗的车棚里爬上驾驶台，等候发车的信号。
Well, there we all were, waiting for the bugle...when at last the signal was given, and away we all went like smoke.
我们都在那里等候号角声……信号发出了，我们飞快地跑开了。
any device or object placed to give people a warning,information,etc
（给人警告、信息等的）信号器或信号物
device for converting digital signals into analogue signals.
把数字信号转换成对等信号的装置。
device for converting analogue signals into digital signals.
把对等信号转换成数字信号的装置。
registration of letters, parcels, trunks, etc
信件、 包裹、 衣箱等的挂号
No. Wait -- there's something very weak coming through.
不！等一下！有微弱的信号
equal signal system
等信号无线电导航系统
isochronous signal distortion tester
等时信号畸变测试器
ochronous signal distortion tester
等时信号失真测试器
isochronous signal distortion testing equipment
等时信号畸变测试仪
Even if you start with something (like a bump on a rotating neutron star) that gives off a perfect sine wave signal, it won't stay that way by the time it gets into the data stream.
即使你开始时探测到一个完美的正弦波信号，等到记录它的时候可就是另外一个样子了。
You have to sign for it when you receive a certified mail.
您收到挂号信的时候要签收。
Plant signals and ecological evidences of climate change in China;
中国气候变化的植物信号和生态证据
Something, such as a missile, an aircraft, or a radio transmission, that is intercepted.
拦截信号截取的导弹，飞机或无线电信号等
(in the navy)petty officer( in charge of steering,signals,etc )
（海军的）航信士官（负责掌舵、信号等）.