power supplyA power source is a device that converts other forms of energy into electrical energy. The power source is based on the principle of "magnetoelectricity" and is generated by renewable ener
We know that patent law is regional. If others do not apply for patents in our country, even if our products use other people's technology, it is not considered infringement. Although China's patent l
1. What is radio frequency identification? Radio frequency identification (RFID) is a wireless communication technology that can identify specific targets and read and write related data through radi
[i=s]This post was last edited by paulhyde on 2014-9-15 09:17[/i] [b][font=仿宋_GB2312][size=12pt][color=#000000]1. Design Task[/color][/size][/font][/b] [color=#000000][font=仿宋_GB2312][size=12pt]Design