A cloud can contain one or more virtual data Centers (VDC) - a representation of a user's view of available resources in a single virtual data center.

一个云可以包含一个或多个虚拟数据中心(VDC) -这是从用户角度所见的单个虚拟数据中心的所有可获取资源的展现。

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It can be explained by the role of dualistic property of oxygen and supports the point of view in the model of dynamical surface emission centers.

可用氧的一分为二作用来解释，初步支持了动态表面发射中心的观点。

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This paper centers on the above issues, and makes a research on temporary price discounts from retailers and suppliers point of view separately.

文章首先概述折扣定价问题以及临时价格折扣的研究背景、研究现状；

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Google also has free wireless in its hometown of Mountain View, California, as well as other cities where it has data centers.

FORBES: Google Brings Wireless to Manhattan