發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Characterization of lead-free bismuth titanate (Bi<inf>4</inf>Ti <inf>3</inf>O<inf>12</inf>) synthesized by a modified oxalate co-precipitation method