Step four: the write system call returns, creating our fourth context switch.

步骤四：系统调用返回，导致了第4次上下文切换。

youdao

Step three: the write system call causes a context switch from user mode to kernel mode.

send() 套接字调用引发了从用户模式到内核模式的上下文切换。

youdao

Similarly, functions such as printf and fprintf invoke the write system call to do their work.

类似地，printf和fprintf这样的函数调用write系统调用完成其工作。

youdao

And that concept is really to either write information into the brain and the nerve system or read information out of the brain and the nerve system.

这一概念实际上是指,向大脑或者神经系统输入信息,或者读出大脑和神经系统以外的信息。

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Let's take a system. Under constant pressure T1 V1, going to a second -- this is the system, so let me write the system here.

我们建立一个系统1,在恒定的压强T1，V1，下，变成了另一个系统，-这个初始的系统让我把它写在这。

麻省理工公开课 - 热力学与动力学课程节选

And so, we can immediately write this du and then we can write du for the universe, which is system plus surroundings is equal to zero.

因此，我们可以立刻写出这个等式,然后可以写出总的的，也就是系统加环境的du，等于零。

麻省理工公开课 - 热力学与动力学课程节选

For example, when IBM first asked Gates to write an operating system for its first PC, Gates possessed neither the experience nor the resources to put one together.

FORBES: Magazine Article

In the summer of 1975 a Harvard junior, Bill Gates, drove to Albuquerque and with his friend Paul Allen started a company, Micro-Soft, to write an operating system called BASIC for the Altair 8800.

FORBES: Magazine Article

For example, when IBM (nyse: IBM - news - people ) first asked Gates to write an operating system for its first PC, Gates possessed neither the experience nor the resources to put one together.

FORBES: How To Be The Next Bill Gates