对输入进行分压,降低输入幅度,主要钳位保护The next generation keyboard, future keyboard!
challenge and subverting the global computer keyboard, keyboard music instruments in 25 years ago,
The pioneer of the Chinese people firstly entered this area. who sent it into the modern house of CEO of Microsoft?
To challenge AT&T of the United States by improving communication deficiencies
Improving communication deficiencies, Chinese people challenge AT&T of the United States