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  ____      ______    _____      ___              
 |  _ \\   /_   _//  / ____||   / _ \\      ___   
 | |_| ||   -| ||-  / //---`'  | / \ ||    /   || 
 | .  //    _| ||_  \ \\___    | \_/ ||   | [] || 
 |_|\_\\   /_____//  \_____||   \___//     \__ || 
 `-` --`   `-----`    `----`    `---`       -|_|| 
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發送短信 : Evaluation of egm2008 using GPS/LEVELING data in Thailand