为此我们需要有一个快速的光开关。

To do this we need a fast light switch.

youdao

光开关是全光网络中的关键器件。

Optical switch is the key part in all optical network.

youdao

打开这束光的开关就是教育。

The switch to turn on the light is called education.

youdao

打开这束光的开关就是教育。

The switch to turn on the light is called education.

youdao