The difference of tube and transistor.

On 2018-12-04 10:44:04 in Knownlege

The difference of tube and transistor.

This article describes the difference of tube and transistor ...

What is a wavefront sensor?

On 2018-12-04 10:38:41 in Photoelectric

What is a wavefront sensor?

​This article briefly introduces the wavefront sensor ...

Transformer

On 2018-12-04 10:31:30 in Technology

Transformer

​ This article describes the basic principles of the transformer ...

Basic operation steps of manual welding

On 2018-12-04 10:23:27 in Knownlege

Basic operation steps of manual welding

​ This article describes the basic operation steps of manual welding ...

Various pliers

On 2018-12-04 10:07:18 in Knownlege

Various pliers

This article describes the various pliers and their role ...