The key technique of network differential positioning based on virtual reference station, the algorithm the generation of virtual phase observation and differential corrections was proposed.

针对虚拟参考站网络差分定位的关键技术，提出了虚拟相位观测值及差分改正信息生成的算法模型。

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The OVF environment is used in the deployment phase of the virtual appliance life cycle.

OVF环境在虚拟工具生命周期的部署阶段中使用。

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The last step in the preparation phase is to create a sample activation profile for the virtual image.

准备阶段中的最后一个步骤是为虚拟映像创建示例激活配置文件。

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Facebook is announcing the next phase in its roll-out of its virtual currency Facebook Credits, which is leaving beta testing today.

FORBES: Gold Bugs Take Note: Facebook Credits Now "Universal Currency"