The average absorption coefficient of the composite structures made by partt board and wooden fiberboard can increase up to 0.868, 0.862 from 0.409, 0.306.
而通过几个参数的适当搭配，槽孔板与木丝板复合结构的平均吸声系数分别由0.409，0.306最高可提高到0.868，0.862。
This system programmed can he used in designing cushion, fiberboard box and tray of products, and it can also he used in combining and optimizing design schemes.
设计的集成化运输包装系统可以完成产品的缓冲设计、纸箱设计和托盘设计，并对方案进行组合、优化和优选。
This system programmed can he used in designing cushion, fiberboard box and tray of products, and it can also he used in combining and optimizing design schemes.
设计的集成化运输包装系统可以完成产品的缓冲设计、纸箱设计和托盘设计，并对方案进行组合、优化和优选。
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