發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Fabrication of single-layered and double-layered TiO2 nanotube arrays for dye-sensitized solar cells