發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : Catalytic decomposition of nitrous oxide N2O: A study for p-block- element lead in PbO-ZrO2/Al2O3 systems