给定系统上运行的线程越多，对那些有限系统资源的需要更多，等待同步锁释放的时间越长。
The more threads running on a given system, the more demand for those limited system resources and the more time spent waiting on synchronization locks to release.
由垃圾收集我们的对象的破坏是的完美的释放那些讨厌的非托管资源的时间。
The destruction of our object by the Garbage collector is the perfect time to free those pesky unmanaged resources.
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。
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.
资源还与到期时间戳相关联，该到期时间戳指示了资源何时从存储器释放。
A resource is also associated with an expiration time stamp that indicates when the resource is to be freed from memory.
资源还与到期时间戳相关联，该到期时间戳指示了资源何时从存储器释放。
A resource is also associated with an expiration time stamp that indicates when the resource is to be freed from memory.
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