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|  __ \\  | || | ||  | \| ||  \ \\/ // |      \\ 
| |  \ || | || | ||  |  ' ||   \ ` //  |  --  // 
| |__/ || | \\_/ ||  | .  ||    | ||   |  --  \\ 
|_____//   \____//   |_|\_||    |_||   |______// 
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發送短信 : Piecewise linear behavior of RC beams with openings