So musical instruments evolved in ways that optimize their acoustical properties, how the instrument vibrates and sends those vibration through the air to our eardrums.
On the base of above research results, suitable numerical simulation methods for the cutting process of linear shaped charge with three different ways of detonation are brought forward.
This paper puts forward coactions way of imitation screen and matter, it conforms to movement process, may use computer demonstrating, it has significance to practice parameter design.
Blue was Blair's favorite color, and she could hardly wait to see his eyes light up and his wide smile as he gazed at her in the new dress, the way he had gazed at her on their first date.