当您考虑将在事实表上发生的可能汇总时，相加性就变得很重要。

Additivity becomes important when you consider the possible summarizations that will occur on a fact table.

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相加性（要总结的测度的能力）：测度分成三个类别：全相加的（fully additive）、非相加的（nonadditive）和半相加的（semiadditive）。

Additivity (the ability of measures to be summarized): Measures fall into three categories: fully additive, nonadditive, and semiadditive.

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行政法制监督的有效性是由各构成要素在一定的组合方式下相互影响、相互作用的综合效果来决定的，而不等于各构成要素功能的简单相加。

The validity of administrative supervision of legal system is determined by comprehensive impacts of various elements which interact in a certain combined way, not simply by their summarizations.

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