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             ___     _____       ___       _____  
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 | [] ||  |  ___  ||| |__/ ||  | \_/ ||   /    // 
 |  __//  |_||  |_|||_____//    \___//   /____//  
 |_|`-`   `-`   `-`  -----`     `---`   `-----`   
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發送短信 : Precipitation in the Nugget Zone of AA6061-T6 by Friction Stir Welding