It can contain any kind of relationship, including subtyping and many-to-many relationships.
它可以包含任何种类的关系，包括图表类型和多到多的关系。
To map these relationships effectively, we must understand the differences between them, how to implement relationships generally, and how to implement many-to-many relationships specifically.
要有效地映射这些关系，必须理解它们之间的差异、如何实现一般的关系，以及如何实现特定的多对多关系。
If you have some experience modeling data for relational databases, you know that many-to-many relationships between different relational entities appear all the time.
如果您有关系数据库数据的建模经验，那么您就会知道不同关系实体之间的多对多关系随时会出现。
Transparent, providing cross domain visibility via many-to-many artifact relationships.
透明的，以多对多的工件关系支持跨领域可见性。
More than the simple mechanics of many-to-many relationships, I hope that you picked up on some of the subtleties of creating them as well.
除了简单的多对多关系以外，希望您还能从本文了解一些创建多对多关系的出色技巧。
Sometimes, relationships expressed during conceptual data modeling (in particular many-to-many relationships) are shown in the logical model as entities themselves.
有时候，概念数据建模期间表达的关系（特别是多对多关系）在逻辑模型中被显示为实体本身。
You saw the grails.converters package in action in " Many-to-many relationships with a dollop of Ajax."
您在 “ 精通Grails：使用 Ajax 实现多对多关系中见过了使用中的 grails.converters”包。
Thus, pub/sub-based service interactions can support true many-to-many relationships.
因此，基于pub/sub 的服务交互能够支持真正的多对多关系。
Later, in "Many-to-many relationships with a dollop of Ajax," you used GORM to model increasingly sophisticated class relationships.
之后的“使用Ajax实现多对多关系”教您使用GORM建模越来越复杂的类关系。
Now that we have the data model in place, let's take a top-down look at how these many-to-many relationships will be created from the end user's perspective.
现在数据模型已经就绪，让我们详细查看如何从最终用户的角度创建这些多对多关系。
Add a new participant to a given instance (used for many-to-many relationships only).
将新参与者添加到给定实例(仅用于多对多关系)。
Separating associations makes the delineation of objects clearer, reduces problems with recursion, and is more adapted to many-to-many relationships.
将关联与其他对象分开使得对象的描绘更为清晰，减少了递归式问题，而且更加适合于多到多关系。
If you have multiple types of records that are related to each other, you can define one-to-many, one-to-one, and many-to-many relationships as well.
如果您有多种彼此相关的记录，您也可以定义一对多、多对一、和多对多的关系。
You can find examples of one-to-one and many-to-many relationships in the online Grails documentation; see Resources.
在Grails的联机文档中，可以找到一对一和多对多关系的示例，请参阅参考资料。
You can use one-to-many or many-to-many relationships for lookup relationships that map one value to multiple other values.
您可以对将一个值映射到多个其他值的查询关系使用一对多或多对多关系。
JPA supports one-to-one, one-to-many, many-to-one, and many-to-many relationships.
JPA支持一对一、一对多、多对一和多对多关系。
There may be practical constrains on information that justify separating logically related many-to-many relationships.
可能存在对信息的实际约束，该约束证明了分离的逻辑相关的多对多关系的合理性。
Through my many visits to China and my work with Snoopy, I have been very fortunate in developing long term relationships with respected colleagues: many whom I can truly call friends.
在多次到访中国以及和史努比相关的工作经历中，我和可敬的同事们结下长存的友谊，我们成为真正的朋友。
Describes one-to-one, one-to-many, and many-to-many relationships.
描述一对一、一对多和多对多等关系。
A many-to-many relationship can be re-written as two one-to-many relationships with a join table in the middle.
一个多对多的关系可以重新写为二一和一个联接表中多关系。
A many-to-many relationship can be re-written as two one-to-many relationships with a join table in the middle.
一个多对多的关系可以重新写为二一和一个联接表中多关系。
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