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

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發送短信 : Transmisi Gelombang Melalui Pemecah Gelombang Susunan Pipa Horizontal