發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Effects of various carbon-based materials on polymer matrix to the barrier and corrosion performance of coating