此类中的大部分方法只是简单描述要在BIRTAggregation Widgets下拉列表中显示的聚合的各个方面，比如数据类型、标题和描述信息。
Most of the methods in this class simply describe various aspects of the aggregation, such as data type, title, and description information, to show up in the BIRT Aggregation widget drop-down list.
此类中的大部分方法只是简单描述要在BIRTAggregation Widgets下拉列表中显示的聚合的各个方面，比如数据类型、标题和描述信息。
Most of the methods in this class simply describe various aspects of the aggregation, such as data type, title, and description information, to show up in the BIRT Aggregation widget drop-down list.
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