This text introduced the basic concept and modeling process of a semantic object model, and compared it with E-R model.
简要介绍了语义对象模型的几个基本概念，并与E -R模型作比较。
This paper makes an E-R model for the comprehensive vulnerability analysis model, and establishes IMS vulnerability knowledge base.
并对脆弱性综合分析模型进行了E-R建模，建立了脆弱性知识库。
After the analysis of system function and business, this paper designs the database E-R model and logical data model of this system.
在分析了系统业务和功能之后，设计了系统数据库的E - R模型及逻辑数据库模型。
JD-R model is concerned with the effects of job conditions on three burnout dimensions on the basis of job demands and job resources.
工作要求-资源(JD R)模型从工作要求和工作资源两个维度出发，研究了工作条件对职业倦怠各个维度的影响。
The system is developed by object-oriented method, and modeled by UML. According to E-R model analysis, the background database is established.
系统采用面向对象的开发方法，用uml建模语言将系统需求模型化，并根据E - R模型分析结果建立后台数据库。
With the C- R model, on the condition of given plasma parameters, we calculated the "pure atomic" relaxation and population of Li- like Al ions.
本文运用碰撞—辐射模型，在给定的等离子体参数条件下，计算了“纯原子”弛豫过程及各能级的粒子数布居，并对计算结果进行了讨论。
According to the deficiency of traditional E-R model in large database designing, the paper puts forward a design idea of object-oriented database based on UML.
针对传统e - R模型在大型数据库设计中的不足，提出一种基于UML的面向对象数据库设计思想。
A good algorithm to design such a hierarchical database consists of two steps, first, to describe real world in E-R model and then, convert it to the model supported by the DBMS.
在设计层次型数据库时，一个较好的设计方法是分二步走：首先利用实体联系方法抽象出现实世界的实体联系模型，然后将实体联系模型变换到具体DBMS 所支持的层次型模型。
Considering the nonlinear affects of various parameters on rain attenuation, we propose a new rain attenuation model based on evolutionary neural network and compare it with the ITU-R model.
本文在考虑多个参数对雨衰减非线性影响的基础上，建立了基于进化神经网络的雨衰减模型，并与ITU - R模型进行了比较。
The logic framework structured design is consisted of theory analysis of function dependency, relation normalization, transformation from E-R model to relation model and data model normalization.
逻辑结构设计包括函数依赖和关系规范化的理论分析、E - R模型向关系模型的转换和数据模式规范化。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
Four propagation models of diffraction, line-of-sight, scatting and duct are analyzed. The basic transmission loss for each of the models is calculated according to the ITU-R model and GZB model.
分析了电波的地波绕射传播、视距传播、散射传播和波导传播等四种传播模式，根据ITU - R和GZB建议的模型分别计算了各传播模式的基本传输损耗。
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