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  ____     __   __    _  _     ______    ______  
 |  _ \\   \ \\/ //  | \| ||  /_   _//  /_   _// 
 | |_| ||   \ ` //   |  ' ||   -| ||-     | ||   
 | .  //     | ||    | .  ||   _| ||_    _| ||   
 |_|\_\\     |_||    |_|\_||  /_____//  /__//    
 `-` --`     `-`'    `-` -`   `-----`   `--`

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發送短信 : Study of band structure of beryllium oxide