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   _____    _____     _  __    ______   _    _   
  / ___//  |  ___||  | |/ //  /_   _// | \  / || 
  \___ \\  | ||__    | ' //    -| ||-  |  \/  || 
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 /____//   |_____||  |_|\_\\  /_____// |_|\/|_|| 
`-----`    `-----`   `-` --`  `-----`  `-`  `-`

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發送短信 : Photocatalytic degradation of methylene blue by Zn<inf>2</inf>SnO<inf>4</inf>-SnO<inf>2</inf>system under UV visible radiation