ThreadGroups tend not to be used directly in thread-based programs.

线程组往往不会直接在程序中被使用。

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A kernel thread-based asynchronous cache writing method is also proposed to improve the effectiveness of cache writing.

并提出了基于内核线程的异步缓存写入方法，提高写缓存的效率。

youdao

In this dissertation, we have conducted a sophisticated theoretical and technical study on checkpoint technology, and improved the thread-based kernel level checkpoint to speed up checkpointing.

本文对检查点技术开展了广泛深入的理论与技术研究，改进了基于线程的内核级检查点机制，加快了设置检查点的速度。

youdao

It works like this: thread by thread technicians apply the synthetic, polyester-based extensions to each tiny lash (up to 120 an eye) leaving clients the look of full eye-make up.

FORBES: Google To Glam: One Woman's Career Reboot Finds Cash In Lashes