This article has given an overview of the challenges with writing entity EJBs, and some of the features of the EJBMaker tool.
本文概述了编写实体EJB 所面临的挑战，以及EJBMaker 工具的某些功能。
High Weapon System Integration simulation Environment (WISE) is a powerful tool to develop the entity simulation model, but it lacks of support for the federate development.
武器系统综合仿真环境(WISE)是开发实体仿真模型的有力工具，但是它缺乏对联邦成员开发的支持。
Certificate has become the managing tool of PKI. End entity must validate certificate's creditability before communication.
PK I以数字证书为密钥管理工具，终端实体之间进行通信之前必须要验证数字证书的可信性。
A graphical data modeling tool, allowing one to build Entity-Relation data models for use with Relational Databases (RDBMS).
这是个图形化的数据建模工具，可创建使用关系数据库的实体-关系数据模型。
Object to object mapping. Like, the tool can be used to map entity objects to domain objects instead of writing manual mapping code.
自动生成对象到对象的映射代码，比如，能够生成从实体对象映射到域对象，而不是手动编写映射代码。
Through entity-relational mapping tool to relational database mapping data into a target to achieve the object-oriented manner in order to operate the database.
通过实体关系映射工具将关系型数据库的数据映射成对象，实现了以面向对象方式操作数据库。
The nc machining simulation environment, including roughcast, tools, fixture and machine tool modeling, is constructed in computer by combining three-dimensional entity modeling and database method.
综合利用三维实体建模技术与数据库技术，在计算机仿真模型中，构建了包括毛坯、刀具、夹具及机床等部件的“真实”数控加工仿真环境。
The nc machining simulation environment, including roughcast, tools, fixture and machine tool modeling, is constructed in computer by combining three-dimensional entity modeling and database method.
综合利用三维实体建模技术与数据库技术，在计算机仿真模型中，构建了包括毛坯、刀具、夹具及机床等部件的“真实”数控加工仿真环境。
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