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 / ____||  \ \\/ // |      \\   / _ \\  | |  | || 
/ //---`'   \ ` //  |  --  //  / //\ \\ | |/\| || 
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  `----`     `-`'   `------`  `-`   `-` `-`   `-`

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發送短信 : Characterization and properties of lampang kaolinite clay for standard clay