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

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發送短信 : Barium titanate nanopowders prepared from the modified oxalate co-precipitation method