Cannot request exclusive semaphores at interrupt time .

无法在中断时请求独占的信号灯。

The most common building blocks of intertask communication are semaphores and mutexes .

大部分进程间通讯的建立的基石是信号灯和互斥。

Semaphores weren 't very successful in england because of the fog and smog caused by the industrial revolution .

旗语在英格兰却没有取得成功，因为工业革命，导致英格兰烟雾太浓。

Protecting semaphores with access control security helps prevent malicious attacks , but does not solve the problem of unintentional name collisions .

使用访问控制安全机制保护信号量可帮助阻止恶意攻击，但无法解决意外发生的名称冲突问题。

Often there is no alternative to semaphores and spinlocks ; they may be the only way to get the job done properly .

我们经常没有其他的旗语或自旋锁可选择；它们也许是正确完成工作的唯一选择。