One special signal, SIGKILL, can't be blocked or caught, and it kills a process immediately.

有一个特殊的信号 SIGKILL 是无法被阻塞或捕捉的，它会立即终止某个进程。

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Finally, several special signal processing techniques used in digital hearing aid were introduced.

文章最后介绍了一些助听器信号处理的新思路。

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It turns out that the relief from scratching comes from a special signal that quiets nerve reactions.

原来抓痒所得到的舒缓感是来自于一个特殊信号，它能安抚神经的反应。

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The alleged use of special operations troops in the raid could signal a shift away from the controversial U.S.tactic of relying on long-range missile assaults to take out terrorist targets.

VOA: standard.2009.09.15

When you touch boiling water, for example,get a cut, or even exercise too much, a special receptor on the neuron is activated, sending a signal to the brain - that hurts!.

VOA: standard.2010.05.04

The ultimate test, however, would be to look for a special signal in the CMB referred to as B-Modes.

BBC: The first fractions of a second after the Big Bang

Of course, you can always use a streaming music service on a computer and output the digital signal from there without any special equipment.

FORBES: How to Get True High-End Audio From Your iPhone

Microsoft has researched how to determine location using special radio beacons as well as by analyzing Wi-Fi signal strength.

FORBES: Microsoft, Motorola, Nokia And RIM To Battle Google Over Indoor Location Market