The difference between resistance and impedance
On 2018-12-04 11:32:41 in Knownlege
This article describes the difference between resistance and impedance ...
Is the LED display a liquid crystal display?
On 2018-12-04 11:19:23 in Knownlege
This article briefly introduces the display liquid crystal display ...
Composition of printed circuit boards
On 2018-12-04 11:13:50 in Knownlege
This article describes the composition of printed circuit boards ...
The difference of tube and transistor.
On 2018-12-04 10:44:04 in Knownlege
This article describes the difference of tube and transistor ...
Basic operation steps of manual welding
On 2018-12-04 10:23:27 in Knownlege
This article describes the basic operation steps of manual welding ...