这个问题实际强调了数据库样式的实体关系（ER）世界观和面向对象（OO）世界观之间的不同。
This issue really highlights the difference between a database-style, entity-relationship (ER) worldview and an object-oriented (OO) worldview.
事实是，一旦我完成了所有的问题，这是一个伟大的方式来表示两个实体类型的多对多关系。
The truth is that once I hashed out all the issues, this is a great way to represent two entity types in many-to-many relationship.
分析了一个电子商务系统中认证中心，商家，客户三个实体的关系，研究了电子商务的支付问题并提出改进方案。
It analyzes the relation of authentication center, merchant and client, discusses the defrayment problem of E-commerce and puts forward a better scheme.
针对地理实体在精简过程中遇到的相交关系一致性维护问题，提出了一种新的处理策略。
A novel strategy is presented to solve the consistency problem of maintaining intersection relation among spatial entities in map simplification.
文章主要从体现空间关系的实体可居点出发，讨论后置方位词的选择问题。
This thesis discusses the selection for post-locatives in the perspective of the locations on entities which embody the spatial relationships.
他们必须为他们要解决的业务问题的实体、关系以及逻辑进行建模。同时他们还必须使用数据引擎来存储和关系相关数据。
They must model the entities, relationships, and logic of the business problems they are solving, and they must also work with the data engines used to store and retrieve the data.
目前有关民事诉讼法与民事实体法关系的问题已成为诉讼法理论界所关注的热点问题。
Currently the issue concerning the relationship of civil procedures law and civil entity law has been a hot topic in procedures law theory circle.
引用石墨经验力常数计算碳纳米管声子色散关系时 ，必须处理由二维平面卷曲形成三维实体纳米管所引入的问题 。
Based on the force constant model we calculate the phonon dispersion relations of single wall BC_3 nanotubes with different diameters and chiralities.
引用石墨经验力常数计算碳纳米管声子色散关系时 ，必须处理由二维平面卷曲形成三维实体纳米管所引入的问题 。
Based on the force constant model we calculate the phonon dispersion relations of single wall BC_3 nanotubes with different diameters and chiralities.
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