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  ______   _    _    _    _      ___     _____    
 /_____// | || | || | \  / ||   / _ \\  |  __ \\  
 `____ `  | || | || |  \/  ||  / //\ \\ | |  \ || 
 /___//   | \\_/ || | .  . || |  ___  ||| |__/ || 
 `__ `     \____//  |_|\/|_|| |_||  |_|||_____//  
 /_//       `---`   `-`  `-`  `-`   `-`  -----`   
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發送短信 : Sliding wear behaviour of calcium containing AZ31B/Al2O3 nanocomposites