Is it true that the life of a transparent LED display is 100,000 hours? Like other electronic products, LED transparent screens have a service life. Although the theoretical life of LED is 100,000 hou
British automotive supplier Domnick Hunter is now able to produce air and fuel filters more efficiently, economically and environmentally friendly thanks to infrared drying. Previously, the adhesive u
[i=s]This post was last edited by qi777ji on 2021-5-24 11:14[/i]I made this mistake about DC bias when I just started working, and I remember it very clearly. When we were studying in school, the text
Abstract: A two-stage first-order adjustable phase shifter with a center frequency of 100 MHz is constructed using a PIN tube and a radio frequency operational amplifier. The phase adjustment range is