信号量

The semaphore signaled for the train to proceed, indicating that the track was clear.
信号灯发出通行信号，表明铁轨已空闲。
In computer programming, semaphores are used to manage concurrent access to shared resources.
在计算机编程中，信号量被用来控制对共享资源的并发访问。
She raised her semaphore hand high to get the attention of the rescue team on the mountain.
她高举信号旗以引起山上的救援队伍注意。
A semaphore is a low-level synchronization mechanism that helps prevent race conditions in multi-threaded applications.
信号量是多线程应用中的低级同步机制，有助于防止竞态条件。
The semaphore count was incremented to allow another process to access the critical section.
信号量计数器增加，允许其他进程访问关键区域。
The semaphore was released after all tasks had completed their designated operations.
所有任务完成指定操作后，释放了信号量。
In networking, semaphores are used to coordinate access to network resources between different processes.
在网络中，信号量用于在不同进程之间协调对网络资源的访问。
The semaphore system ensures that only one thread can execute a particular piece of code at a time.
信号量系统确保任何时候只有一个线程执行特定代码段。
The semaphore value was set to zero to indicate an empty queue for incoming requests.
将信号量值设置为零，表示接收请求的队列为空。
A mutex (mutual exclusion) semaphore and a counting semaphore can be combined to provide more complex synchronization scenarios.
可以将互斥信号量和计数信号量结合使用，以提供更复杂的同步场景。