相反，如果一个信号量的数值为0(或小于零)，进程就必须一直等待直到其他进程释放了这个信号量。
If, instead, the semaphore's value is 0 (or less), the process must wait until somebody else releases the semaphore.
一直以来的假设是如果一个无线电连接的两端都同时讲话，那么正在接收的信号将会相互干扰。
That assumption was that if both ends of a radio connection spoke at once, the signals being received would be obscured.
如果你多次发现自己遇到这种情况，这就是一个你必须加倍小心的信号，在跟这位仁兄工作的时候一定要彻底把事情弄清楚。
And if you find yourself in this situation more than once, it is a sign that you need to be extra careful when working with this particular person to get things fully understood.
如果你想对跑步和步行的间隔计时的话，你可以用一个手表或者其他能够发出哔哔声信号的设备当你需要转换的时候。
If you want to time your running and walking intervals, you can use a watch or other device that beeps to signal when you need to switch.
如果我们中的某一位能够首先对一个信号作出解读，其他人就能对其进行证实或证伪。
If one of us will be able to provide the first hints of a signal, the other will be able to confirm it or disprove it.
另一方面，如果一地外的无线电信号能被探测到，那就将会是一个更为清晰且令人兴奋的时刻。
If, on the other hand, an alien radio signal were to be detected, that would constitute a more clear-cut and exciting moment.
然而，如果在组织不同部分之间有显著的不同，或者没有清楚的模式，这是一个潜在问题的信号。
However, if there are striking differences between different groups of the organization, or if no clear pattern exists, this can be a sign of underlying problems.
如果底特律高技术人才的雇用在新工作机会的创造中所占比例正在上升，这才是对这座城市的一个积极的信号。
If the share of high skill employment in new job creation in Detroit is rising, then that's a promising sign for the city.
如果你发现一个人总是不诚实，这一定是预示“情况非常糟糕”的危险信号了。
If you catch someone constantly being dishonest, this is certainly a "red flag" that something is very wrong.
特别是如果电视机与天线距离超过超过20英寸(6米)，就得考虑买一个内置信号放大器的天线。
Think about buying an aerial with a built-in signal amplifier, especially if the television set is more than 20 feet (six metres) away.
“我们发出这样一个信号，如果你更强，你可能更疯狂”，Dinallo先生认为：高评级公司被允许不计后果的签下大量掉期交易合约。
“We sent out a signal that the stronger you were, the crazier you could be, ” says Mr Dinallo: highly rated companies were allowed to write reckless volumes of swaps.
“我们发出这样一个信号，如果你更强，你可能更疯狂”，Dinallo先生认为：高评级公司被允许不计后果的签下大量掉期交易合约。
"We sent out a signal that the stronger you were, the crazier you could be," says Mr Dinallo: highly rated companies were allowed to write reckless volumes of swaps.
如果对这种思想有抵触甚至不想征求别人对这种主意的意见，那么，这是一个危险信号，它不是从上帝而来的。
Resistance to the thought of even asking somebody else about your idea, that should be a huge red flag that the idea did not come from God.
如果你跳过了共鸣步骤，你的孩子会认为你在使用方案A，因为你开始你的关心，并且那通常传达了一个信号，你将你的意思强加进方案。
If you skip the Empathy step, your child will think you're using Plan a because you're leading off with your concern and that's usually a signal that you're about to impose your will.
类似地，如果需要访问发出信号的对象，就要使用第一个参数，在这个具体回调中是button。
Similarly, if you need to access the object that emitted the signal, you use the first parameter, which is button in this specific callback.
该行说明，如果我们的overage比储蓄帐户的余额数目还要大，那么就需要抛出一个危险信号。
Which states that if our overage is greater than the amount in our savings balance, then we need to go ahead and raise a red flag.
相反，如果你看到该公司的市场份额被竞争对手夺走，那就可能是一个长期走弱的信号，很可能就是一个卖出的理由。
On the other hand, if you see the company losing market share to competitors that could be a sign of long-term weakness and likely a reason to sell.
等到他或她醒来，病人可能已经死了有一会儿了。但是如果你能发现预警信号并让你屋里的另一个人保持警醒，那才能拯救生命。
By the time [he or she] wakes up, the patient may have been dead for a while, but if you have a warning sign and can alert another person in your house, that can be lifesaving.
如果违反了您在触发器中定义的业务规则，就可以使用signal语句来抛出一个错误条件信号。
You can use a SIGNAL statement to raise an error condition if the business rule defined in your trigger is violated.
在信号处理应用程序中，如果恢复信号需要乘上一个“满”的矩阵，那么带状矩阵提供的所有的速度优势都将不复存在。
In a signal-processing application, all the speed advantages offered by banded matrices would be lost if restoring the signal required multiplying it by a full matrix.
在一个信号量保护大量数据时，如果一个或多个任务使用它进行写操作，这个信号量就会成为系统瓶颈。
When a semaphore protects a large amount of data, assuming one or more tasks USES it on a write basis, the semaphore becomes a bottleneck within the system.
如果您过去曾经编写过事件驱动的程序，那么我认为您会发现，对于设置显式事件处理循环这一常见做法，使用信号是一个令人耳目一新的变化。
If you've ever done any event-driven programming in the past, I think you'll find signals to be a refreshing change from the common practice of setting up an explicit event processing loop.
如果控制器收到了来自活动的SUCCESS信号，它会发送信号到协调器组件(在本例中是PROPAGATE)，从而调用下一个活动。
If the controller receives a SUCCESS signal from an activity, it sends a signal to the coordinator component (in this case PROPAGATE), thus invoking the next activity.
如果你们在扮演什么场景，约好一个“安全词(点击)”作为停下的信号。
If you are acting out a scene has a "safe word" that means stop.
使用这些数据，进程如果在运行过程中接收到一个SIGTERM信号，就可以在执行完关键代码(如果已经启动)之后自行终止。
Using this data, a process can terminate itself after finishing the execution of a critical part of the code (if started) as long as it gets a SIGTERM signal in the middle.
如果考官不给你明确的答复，那么这就是一个让人担忧的信号，所以要有礼貌的提出更多的问题。
If the interviewer cannot give a clear answer then this is a worrying sign, so politely follow up with more questions.
如果子进程在父进程之前终止，则会向父进程发送一个信号，然后子进程转变为僵死状态，直到该信号得到确认，或父进程被终止。
If the child dies before the parent, a signal is sent to the parent, and then the child moves to a zombie state until the signal is acknowledged, or the parent process is killed.
如果子进程在父进程之前终止，则会向父进程发送一个信号，然后子进程转变为僵死状态，直到该信号得到确认，或父进程被终止。
If the child dies before the parent, a signal is sent to the parent, and then the child moves to a zombie state until the signal is acknowledged, or the parent process is killed.
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