For example, a company may be able to estimate accurately the aggregate number of shoes it will sell, but it may be uncertain about which specific types of shoes will sell more than other types.

例如，一个公司也许能够准确地估计它将销售的鞋子总数，但它可能不确定哪一种特定类型的鞋子将比其他类型的鞋子卖得更多。

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Metadata types are those that specific content types aggregate with the base types to provide specific, well-known properties that are specific to a type of content.

元数据类型是特定内容类型与基础类型聚合的类型，提供特定于某类内容的特定属性。

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The role of the data-movement functions is shown in Figure 4 as it relates to the types involved for copy (simple vs. aggregate).

当数据移动函数的规则涉及到复制调用的类型时（简单 VS. 聚集），这些函数的作用如图 4 所示。

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The first three types of fees are shown, as an aggregate total, in each mutual fund's expense ratio, and are generally reported in your 401(k)'s "summary documents" as a percentage of assets.

CNN: Hidden fees are eating up your 401(k)s

It is not possible at present, for instance, to compare the numbers or types of engineers per capita around the world, because such data at the international level aggregate scientists and engineers.

UNESCO: UK National Commission for UNESCO :: Engineer shortage a threat to development, underlines UNESCO��s first global report on engineering