發送短信

數:

提供者:

CAPTCHA:

 _    _      ___      _____     _____             
| \  / ||   / _ \\   /  ___||  |  ___||     ___   
|  \/  ||  | / \ || | // __    | ||__      /   || 
| .  . ||  | \_/ || | \\_\ ||  | ||__     | [] || 
|_|\/|_||   \___//   \____//   |_____||    \__ || 
`-`  `-`    `---`     `---`    `-----`      -|_|| 
                                             `-`

Please enter what you see:

發送短信 : Increased terahertz emission from SI-GaAs deposited with sub-wavelength spacing metal line array