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。

youdao

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。

youdao