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。

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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。

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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。

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That was Cartesian space. When I plot r as a distance out from the nucleus that is sort of our simple-minded planetary model. Now let's look at energy.

笛卡尔坐标系，当我用r表示,离原子核的距离时，那只是我们头脑中简单的,类似行星的模型，现在我们看一下能量问题。

麻省理工公开课 - 固态化学导论课程节选

We had the worst experiences with Ricoh's Media Master MP-6200S, a CD-RW drive, and MicroNet's Master CD Plus 4X12PC, a CD-R model.

CNN: IDG.net - Recordable and rewritable CD drives: Permanent, portable storage

"This will be an innovation as important as the creation of the limited partnership model back in the 1970s, " says Ted R.

FORBES: Day Care

Sales of the R-Class have been sluggish ever since its introduction for the 2006 model year.

FORBES: 2012 Mercedes-Benz R350 Bluetec 4Matic