本实用新型主要用于铁道机车车辆空气制动机输送压缩空气和传递制动操作信号。
The utility model is mainly used in the railway locomotives air brakes to transport compressed air and transfer the brake operation signal.
一输入界面，其中至少包含有一操作键盘，用以对该影像传真扫描装置输入各种操作信号；
The input interface includes an operating keyboard at least in order to inputting all kind of command signal into the equipment.
根据下一步操作发出需要的信号拉动系统只会生产恰好多的原料。
The pull system produces only the required material after the subsequent operation signals a need for it.
还有几个操作可以在信号中安全地完成，但不是很多，而且在处理信号之前，您必须对它有深入的理解。
There are a few more operations that can be done securely in signals, but not many, and you must have a deep understanding of signal handling before doing so.
信号允许进程通过一个单一的原子操作来测试和设置那个整数的值，以此实现同步。
Semaphores allow synchronization of processes by testing and setting the integer value in a single atomic operation.
在特殊情况下，操作系统还可以将一些其他信号传送给进程。
Still other signals are transmitted from the operating system to processes in special circumstances.
操作系统生成许多信号，但您可以将信号从一个进程发送到另一个进程，甚至能让某个进程给自己发送信号。
The operating system originates many signals, but you can send signals from one process to another, or even have a process signal itself.
信号处理器的消息和程序的数据都会被破坏，因为两个调用操作了同一数据结构：流本身。
Both the signal handler's message and the program's data could be corrupted, because both calls operate on the same data structure: the stream itself.
此信号表明，该卫星运转良好且准备好开始轨道演习和操作测试。
The signals indicate that the spacecraft bus is functioning normally and ready to begin orbital maneuvers and operational testing.
这些可能包括不能分辨视觉或听觉信号或者不能操作定位设备。
These might include the inability to discern visible or auditory cues or to operate a pointing device.
在6英尺的边界操作，可能只会接受到一点微弱的信号，而且更易被物理障碍干扰。
Operating on the boundaries of that 6-foot range may only pickup a weaker signal, and be more susceptible to objects that are physically blocking the transmitter's signal.
所有的诊断均使用无线电信号远程操作。
每个已定义的系统信号都有不同的操作。
如果忽略某些信号，将执行默认操作。
If you ignore certain signals, the default action always take place.
您可以将自己的应用程序设计成可以使用信号信息来判断操作过程，从而使应用程序在执行上下文中实现完全控制。
You can design applications to use signal information to decide a course of action, giving applications full control within their execution context.
发生操作系统信号或异常。
更复杂的程序可能使用操作系统信号和简单网络管理协议（SimpleNetwork Management Protocol，SNMP）管理可用性。
Programs that are more sophisticated might use operating system signals and Simple Network Management Protocol (SNMP) to manage availability.
函数调用sigsuspend通过重置信号掩码并使进程休眠一个单一的原子操作来解决这一问题。
The function call sigsuspend resolves this problem by resetting the signal mask and putting the process to sleep in a single atomic operation.
这是一个“等待为0” 的操作，可以用它来获取信号量。
This is a "wait-for-zero" operation and can be used to acquire a semaphore.
让我们来总结一下：一款好的手机安装了一个注定麻烦不断地操作系统，常常被影音软件和时不时存在的T - Mobile信号问题所困扰。
Let's recap: a great phone with a doomed operating system that relies on the troubled Blockbuster chain for its movies and the sometimes spotty T-Mobile network for its signal.
除了下面的信号外，以上操作均适用。
该进程还使用了Linux 的completion，它是像信号一样的操作。
This process also uses Linux completions, which is a semaphore-like operation.
procsig输出进程的信号操作和处理程序。
当一个信号被发送给某个进程时，可能会发生两类操作。
When a signal is delivered to a process, two types of actions are possible.
使用trap捕捉信号并采取相应的操作。
要查看信号及其（在AIX机器上的）默认操作，请查看以下文件
To view the signals and their default actions (on an AIX machine), view the file
脚本接收到信号后，它可以采取以下三种操作之一。
When a signal has been received by the script, the script can do one of three actions.
short sem_op; （信号量操作）
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.
这种策略要求您了解基本操作系统内核提供的机制，并在程序逻辑中利用这些机制设计信号量使用方法。
This tactic requires that you review what the base OS kernel provides or advises in terms of designing the use of semaphores within your program logic.
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