發送短信

數:

提供者:

CAPTCHA:

 _____       ___      ______    _____    _    _   
|  __ \\    / _ \\   /_   _//  |  ___|| | || | || 
| |  \ ||  / //\ \\    | ||    | ||__   | || | || 
| |__/ || |  ___  ||  _| ||    | ||__   | \\_/ || 
|_____//  |_||  |_|| /__//     |_____||  \____//  
 -----`   `-`   `-`  `--`      `-----`    `---`

Please enter what you see:

發送短信 : Design 1.3 um GaAsSbN/GaAs quantum well laser diode