The kernel or user space via some system event.

内核或用户空间，通过执行某些系统事件发出信号。

youdao

The xev program output lists every X Window System event in the attached window.

xev 程序输出将在连接的窗口中列出每个 X Window System 事件。

youdao

If a new row has not been created, then examine the system event logs for the cause.

如果未创建新行，则请检查系统事件日志确定原因。

youdao

But last month,a computer programmer from Australia made an exciting discovery of an unusual event in Earth's solar system.

VOA: special.2009.08.25

But in any event, the vaccine is intended to stimulate the immune system to produce an effector response— either antibodies or specific cells— that can combat spread of the microorganism through your body.

但无论如何,疫苗是通过,刺激免疫系统来使身体产生应答,无论是抗体还是特定的细胞,都可以阻止微生物在体内扩散

耶鲁公开课 - 生物医学工程探索课程节选

In that event,astronomers were able to observe the icy comet long before it struck the solar system's biggest planet.

VOA: special.2009.08.25

Analysts and industry watchers expect the company to announce details of its new Meego operating system at the event, an open-sourced mobile operating system on which it has been collaborating with Intel and hopes to use on high-end smart phones that compete with Apple's iPhone.

FORBES: Magazine Article

They had to learn how to use the system after the event, which seriously delayed the project.

ECONOMIST: A survey of software

To save the financial system in the event of a default, some sort of Argentine-style deposit freeze might be needed.

ECONOMIST: Brazil