To generate a high-level class diagram, you need to create a blank model first.
为了得到一个高层的类图，您必须首先建立一个空白模型。
I'll illustrate the implementation of this model first using EJB 3.0, then show the same database updates using the Spring Framework.
我将先使用EJB 3.0来演示这个模型的实现，然后使用SpringFramework来展示相同的数据库更新。
Murray said he chose to develop a petrol model first because he wanted to create the most efficient possible vehicle for a market in which most cars still ran on fossil fuels.
Murray说他选择首先开发燃油车是因为他想开发一种最高效的燃油车——而目前市场上的大多数车辆仍然是燃油车。
On the other hand, if you're starting with a data set, such as fields that must be completed in a database, start by designing the data model first, and then create the form layout.
相反，如果需要从数据集(比如在数据库中必须完成的字段)开始，则最好首先设计数据模型，然后再创建表单布局。
The Create Database Wizard lets you create a conceptual model first and then create a database that supports the model.
利用“创建数据库向导”，您可以先创建概念性模型，然后再创建支持此模型的数据库。
Methods: Erect a paraquat-induced pulmonary fibrosis animal model first.
方法：首先，建立大鼠百草枯中毒致肺纤维化的动物模型。
Or, you can graphically create a conceptual model first, and then generate a database that supports your model.
或者，您可以先以图形方式建立概念模型，然后产生可支援该模型的资料库。
The tools also allow you to build a conceptual model first, then automatically generate related CLR objects and a supporting database.
通过这些工具，您还可以首先构建概念模型，然后自动生成相关的CLR对象和支持数据库。
The model first generates judge-array based on fuzzy optimal theory; and latter determines the optimal plan with the entropy weight decision-making method.
该模型首先根据模糊优选理论生成判断矩阵，后用熵权决策法确定优选方案。
The current methods in the plan of global-data in data integration should abstract a realistic model first, which is very complicated and needs a long period.
数据集成环境中的全局数据规划方法复杂度很高，且需要经历较长的周期。
It's similar to model First development, which USES the EF Designer in Visual Studio to create the data model.
这与“模型先行开发”类似，那种方式会使用VisualStudio中的EF设计器创建数据模型。
Supports model-first or database-first development.
支持模型先行或数据库先行的开发模式。
Model-first : You start with a visual model, and Entity Framework generates both the database and code.
（模型先行）：先从一个可视化模型开始，然后实体框架生成数据库和代码。
Model-first : You start with a visual model, and Entity Framework generates both the database and code.
（模型先行）：先从一个可视化模型开始，然后实体框架生成数据库和代码。
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