發送短信

數:

提供者:

CAPTCHA:

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

Please enter what you see:

發送短信 : LEACHING OF MANGANESE ORES FROM NUSA TENGGARA USING OXALIC ACID AND MOLASSES AS REDUCING AGENTS AND SYNTHETHIC OF MANGANESE DIOXIDE POWDER BY HYDROTHERMAL METHOD