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  _____    _    _    __   _     ______    ______  
 |__  //  | || | || | || | ||  /_   _//  /_   _// 
   / //   | || | || | '--' ||   -| ||-   `-| |,-  
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 `-----`    `---`   `-`  `-`   `-----`     `-`'

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發送短信 : Experimental study of flows in a porous pipe