發送短信

數:

提供者:

CAPTCHA:

 _    _    __   __    ______   __   __   ______   
| || | ||  \ \\/ //  /_   _//  \ \\/ // |      \\ 
| || | ||   \ ` //     | ||     \ ` //  |  --  // 
| \\_/ ||    | ||     _| ||      | ||   |  --  \\ 
 \____//     |_||    /__//       |_||   |______// 
  `---`      `-`'    `--`        `-`'   `------`

Please enter what you see:

發送短信 : Microscopy and strength of borosilicate glass-to-Kovar alloy joints