The data manipulation services (in the lower layer) extract data from the physical repositories, and semantic services turn this data into information.

数据操作服务(在下方的层中)从物理存储库中提取数据，并且语义服务将该数据转换为信息。

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Intensive processing was required to parse data in the Presentation Services layer and extract the sub-set of data needed for a specific operation.

需要大量处理工作来解析presentation services层的数据，以及提取特定操作所需的数据子集。

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Function description: Rare gingko and green tea extract quickly penetrate into the deepest skin layer, lock in water and moisturize persistently, bring skin water feeling.

功能说明：珍贵银杏、绿茶萃取精华能迅速渗至皮肤基底层，持续锁水滋润，给肌肤带来水漾感觉。

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Indirect purchasers who in many cases actually paid the inflated prices are left to sue in state court, where the class-action attorneys have developed a specialized practice to extract an extra layer of revenue from this litigation.

FORBES: U.K. Holds Off Class-Action Tide, For Now