Process and apparatus for increasing sound absorbing properties of acoustical material

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  机译： 用于提高声学材料吸声性能的方法和装置

• 4. Method for designing sound absorbing characteristics of flexible sound absorbing materials, sound absorbing bodies, acoustic diffusers, and sound processing bodies [P] . 日本专利： JP2020144295A . 2020-09-10

  机译： 挠性吸声材料的吸声特性的设计方法，吸声体，声扩散器和声音处理体

• 5. Sound absorbing characteristic design method of flexible sound absorbing material, sound absorbing body, acoustic diffuser, and sound processing body [P] . JP6883807B2 . 2021-06-09

  机译： 柔性吸音材料，声音吸收体，声学扩散器和声处理体的声音吸收特性设计方法

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