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

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發送短信 : Attenuation effect of artificial cavity on air-blast waves in an intelligent defense layer