Applications can be designed to have user-level threads that are scheduled to work by the application or by the pthreads scheduler in libpthreads.

应用程序在设计上可拥有多个用户级线程，并将它们计划为由应用程序或libpthread中的pthread调度程序处理。

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In this model, an arbitrarily large number of user-level threads is multiplexed onto a lesser number of kernel execution vehicles. Kernel execution vehicles are also known as virtual processors.

在这个模型中，任意多数量的用户空间线程复用少量的内核执行对象，内核执行对象即为虚拟处理器。

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