Although overlaps exist in grouping system, it is easier to understand materials when relationships are identified.

尽管类别系统中存在着交迭和相似的东西，而当相互之间的关系属性明确的时候，还是很容易理解它们的。

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The grouping system used here follows closely grouping systems common to engineering. Slight difference exist in other grouping systems.

这里所用的分类体系类似于工程上的常用的分类体系，仅仅存在细微的差别。

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A namespace provides a means for grouping objects in the CBS meta-model, thereby making the system more modular.

命名空间为CBS元模型中的对象提供一种分组方法，从而使系统更具模块化。

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With a grouping system, you can save yourself the trouble of trying to remember or name all the people in a particular group.

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It's a question that one academic grouping, the Earth System Governance Project, has spent a decade researching.

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