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  ______   _    _     _____     _____     ____    
 /_   _// | || | ||  /  ___||  |  ___||  |  _ \\  
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   |_||    \____//   \____//   |_____||  |_|\_\\  
   `-`'     `---`     `---`    `-----`   `-` --`

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發送短信 : Control of co-axial UAV