operating system nucleus

• 操作系统内核

operating system nucleus的用法和样例：

例句

1. Make operating system kernels small and lightweight.
   让操作系统内核小而轻巧。
2. Indicating the amount of time that the thread has spent running code inside the operating system core.
   它指示线程在操作系统内核中运行代码所用的时间。