發送短信

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           __   __    _  __   _    _    ______   
    ___    \ \\/ //  | |/ // | || | || |      \\ 
   /   ||   \ ` //   | ' //  | || | || |  --  // 
  | [] ||    | ||    | . \\  | \\_/ || |  --  \\ 
   \__ ||    |_||    |_|\_\\  \____//  |______// 
    -|_||    `-`'    `-` --`   `---`   `------`  
     `-`

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發送短信 : Performance analysis of TCP over satellite channels