DbContext is a simplified version of ObjectContext, providing basic functionality for model caching, database provisioning, connection management, and schema creation. An example looks as following.
DbContext是ObjectContext的简化版本，提供了基本的模型缓存、数据库供应、连接管理及模式创建等功能。
Essentially, scaffolding means running a script over your database structure to automatically create some basic content management functionality (ie web forms).
从本质上说，scaffolding意味着你可以在数据库结构之上运行script它能自动产生基本的内容管理(比如web表单)。
The system can provide the drawing of basic graphic element, the connection with attribute database, and meet the basic need of the field management.
该系统能够实现基本图形元素的绘制，并能与其属性数据进行连接，能够满足农田管理的基本需求。
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