發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : The influence of finishing time on the marginal seal of a resin-modified glass-ionomer and polyacid-modified resin composite