RowUpdated 事件发出信号通知更新命令结束。

The completion of an update command is signaled by the RowUpdated event.

youdao

该信号通知你的进程，内核即将终止在该文件上你曾获得的租约。

It tells you the kernel is breaking your write or read lease on that file.

youdao

而为了使其变成拉动式系统，还需要一种机制来使下游工序以某种信号通知上游工序开始工作。

To make this a pull system, it needs a mechanism allowing the downstream process to somehow signal the upstream process to start working.

youdao

Now this is a rain gauge, and it's sitting on a roof of a building, and when the water falls into this gauge, it sends a signal to the logic unit of the computer, which immediately notifies the memory bank of the computer to seek out its instructions for a rainy day.

这是一个雨量测量器，安装在一个楼房的,屋顶上，当水流入到这个测量器，它就给计算机的逻辑部件发送一个信号，计算机立即通知内存条,为下雨天找出相应的指令。

哈佛公开课 - 计算机科学课程节选