發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Microstructure: Surface and cross-sectional studies of hydroxyapatite formation on the surface of white Portland cement paste in vitro