Every aggregation type corresponds to a data structure diagram and an entity relationship model.

每种聚合类型对应一种数据结构图和ER模型。

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Analysis of the population data from the field by using the method of spacial distribution index indicates that the spacial distribution pattern of eggs was of aggregation type.

用空间分布型指数法对调查数据进行测定，田间卵的空间分布为聚集分布型。

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Aggregation is a special type of association used to model a "whole to its parts" relationship.

聚合是一种特别类型的关联，用于描述“总体到局部”的关系。

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In this case, a collaboration between the Shanghai City Government (which provides funding) and an aggregation of several NGO support organizations (which actually run the project), it represents the first initiative of its type in China.

FORBES: Social Innovation: Innovation for the Good of Us All