We'll just say here that a process must often wait for some event to occur, such as for a disk operation to terminate, a system resource to be released, or a fixed interval of time to elapse.
我们在这里只说，进程经常必须等待某些事件的发生。例如，等待一个磁盘操作的终止，等待释放系统资源，或者等待时间经过固定的间隔。
Put into operation, let control valve fully open, so the media after a fixed period of time to run into deformity.
投运前，让调节阀全开，让介质固定一段工夫后再纳入畸形运行。
Put into operation, let control valve fully open, so the media after a fixed period of time to run into deformity.
投运前，让调节阀全开，让介质固定一段工夫后再纳入畸形运行。
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