For example, switching logic can be defined to have the return fan start after a programmed delay from the time that the supply fan was started.

比如一个切换逻辑可以用来定义一个风机的开起，当程序定时过后，风机起动。

youdao

A PSU (power Supply Unit) fan is always running when the computer it powers is on.

只要开机，电源风扇就会一直在转。

youdao

Why not connect a small chassis fan or--better yet--an old GPU fan to the power supply?

为什么不接上一个小风扇或是使用旧的显卡风扇呢？

youdao