系统并不会为每个组件的实例都创建单独的线程。
The system does not create a separate thread for each instance of a component.
但也有一个特殊的控制线程是通过系统中的多个对象进行工作的。
A particular thread of control works its way through multiple objects in the system.
线程是系统资源，而这些资源既不是无限的，也不是低价的。
Threads are system resources that are neither unlimited nor cheap.
线程是系统资源既不是无限的，也不便宜。
Threads are system resources that are neither unlimited nor cheap.
这是系统中具备最高权限的线程。
一个计算机系统在正常情况下会具有很多活动的进程和线程。
A computer system normally has many active processes and threads.
这是一个系统来指定多个线程可以同时访问一个资源。
It is a system to specify how many threads can access a resource at once.
辅助线程是标准系统池的一部分。
该线程是操作系统的基本单位。
AD. The thread is a fundamental unit of the operating system.
这样就有很多的线程并行地运行在系统中。
So there is a lot of threads running in parallel on the system.
系统线程间的数据交换在临界区保护模式下实现。
Data exchange among threads was realized under the protection of critical section.
多线程是现代操作系统中出现的概念。
第二，如何线程上运行系统。
Second, how the threads are scheduled is up to the operating system.
一个采用多线程技术的软件可以更高效地利用系统资源。
A Multithreading Technology software can use the system resources more efficiently.
一个采用多线程技术的软件可以更高效地利用系统资源。
A Multithreading Technology software can use the system resources more efficiently.
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