在后台运行脚本时，仍然可以捕获信号。

Signals can also be caught, when a script is running in the background.

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研究人员为用户设计了一个特殊头罩，这个头罩从大脑皮层捕获信号，并重定向到计算机。

The researchers designed a special cap for the user. This head cover captures the signals from the scalp and redirects them to a computer.

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现在，在信号处理器中您并不知道信号被捕获时进程正在执行什么内容。

Now, in the signal handler you can't tell what the process was executing when the signal was caught.

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