The first step to design a data model is to create a simple project (say MyDataModel) and open the data Perspective. Once the data definition view is active.

设计一个数据模型的第一步是创建一个简单的项目(叫MyDataModel)，并打开Data透视图。

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For example, when you create a Client Services project, you select a target definition from a list of available targets, and then a set of features from a list in the target definition.

例如，当创建一个Client Services项目后，从可用目标列表中选择一个目标定义，然后从目标定义中的列表选择一组特性。

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The Air Force Scientific research Office has taken the wraps off a research project that USES holography to create high-definition, 3-d images.

美国空军科学研究办公室日前披露一项计划，利用全息技术实现3d高清成像。

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