According to the working condition and the importance of filter at each location, filters are classified as keyfilter and non-keyfilter.
按各个部位反滤的工作条件和重要性，将反滤分为关键性反滤和非关键性反滤。
2
The first key feature is the ability to sort and filter on multiple stores.
第一项关键特性是对多种存储排序和过滤的功能。
3
Mkfilt: This is a key command that allows us to activate or deactivate the filter rules in the table, enable or disable logging for filters, and change the default rules.