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

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發送短信 : B-spline scale-space of spline curves and surfaces