... black out signal 熄灭信号 infra-black synchronizing signal 超黑同步讯号 artificial black signal 黑电平测试信号 ...
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我们熄灭船上所有的灯光，让船员们护送乘客们回到自己的船舱，并要求他们在我发出解除警报信号之前，任何情况下都不要离开船舱。
We put out all the ship's lights. The crew escorted passengers to their cabins and asked them not to leave for any reason until I gave the all-clear.
但他们发现，即使将火焰熄灭，仍可以获得一个信号——换句话说，就是激光在激发氧原子的同时也分成了两束。
But what they noticed was that even when they turned the flame off they were still getting a signal - in other words, the laser was breaking up as well as exciting the oxygen.
交流(ac)信号产生的电弧通常在电压通过零点时就会自己熄灭。
An arc due to an AC signal usually quenches itself as soon as the voltage level passes through zero.
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