The utility model has the advantages of simple operation, convenient usage and the additivefunction that the decoration painting can be stored with double sides at the same frame.
本实用新型的有益之处在于：操作简单，使用方便，增加了可以在同一画框内进行双面存放装饰画的功能。
2
You can update the additive measure to other aggregation function and can also classify non-additive measures and semi-additive measures.
您可以将附加式度量更新到其他汇聚功能，还可以划分非附加式度量和半附加式度量。
3
The property, function and application of Aloe, as new daily chemical additive, are studied in the article.