This example shows what can happen if a signal handler runs in the middle of modifying a variable.

这个例子展示了在修改某个变量的过程中运行信号处理器可能会发生什么事情？

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Thus, if a signal was not as strong in a particular area, the phone would revert back to the slower GPRS and EDGE networks.

因此，如果信号在特定区域不够强，电话将比gprs和EDGE网络更慢。

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A SETI subcommittee within the International Academy of Astronautics (IAA), a scientific lobby group, even fashioned a protocol on how to respond if a signal from aliens is received.

国际宇宙航行学会的对搜寻地外文明计划中一支小组委员会(一支科学游说小团体)，甚至起草了一份关于如果人类受到了来自外星人的信号，我们将如何应对的协议。

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"They have not got their acts together. So I think the Swat operation has sent a very strong signal and if the government now starts an operation in even Waziristan, which is considered as a hard nut, I think it has good chances to succeed."

VOA: standard.2009.09.14

If the temperature drops below a certain level it sends a signal, 'turn on the heat', and that signal stays on until it gets a negative signal to turn off.

如果温度降到一定程度以下时,探测器会发送一个信号,打开加热器,直到加热器再收到关闭的信号,它就会一直开着

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The captured data is then encoded with GPS info and immediately sent to a call center or trusted friend, or stored for future transmission if a signal is not readily available (since you need to reenter a coverage area at some point for this device to be effective, we can safely rule out T-Mobile as a potential carrier).

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If it sends a signal of cluelessness, it's probably the last signal it will send before the crisis hits.

BBC: Euro talks: The last signal before the storm?

The problem is that if you send a signal by, say, firing off a flare, you're supposed to aim the flare well over the heads of the folks in the lifeboat.

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