The changes of ratio of juice output, soluble solids content, polyphenol content of fruit, and acid content of apple juice concentrate were different with different fruit maturation degree.

不同采收期苹果果实出汁率、可溶性固形物含量、多酚含量、浓缩汁酸含量变化不同。

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The ratio of the square of certain concentration gas diffusion depth and diffusion time is constant when it diffuses and reacts through the solids bed.

一定浓度的气体通过固体颗粒层扩散-反应时，其扩散深度的平方与扩散时间的比值为常数。

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On the basis of counting solids, in the compound resin, the weight ratio of the acrylic resin with glycidyl and the siloxane prepolymer is between 10 and 40 to between 60 and 90.

以固体计，所述复合树脂中，带有缩水甘油基的丙烯酸 树脂与硅氧烷预聚体的重量比为10～40∶60～90；

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