每个多对多的关联映射到唯一的表。
怎样表示两个类之间一对多或多对多的关系？
How do I represent a one-to-many, or many-to-many, relationship between two classes?
因此代码块与业务操作之间存在多对多的关系。
So there is a many-to-many relationship between code blocks and business operations.
多对多——将前两种模式结合在一起。
透明的，以多对多的工件关系支持跨领域可见性。
Transparent, providing cross domain visibility via many-to-many artifact relationships.
这就是多对多市场。
JPA支持一对一、一对多、多对一和多对多关系。
JPA supports one-to-one, one-to-many, many-to-one, and many-to-many relationships.
因此需要一个表连接图书和作者，而且这种连接必须是多对多的。
So you need a table to connect a book to an author, and you must allow those connections to be many-to-many.
多对多的交互：一个或多个事件会影响一个或多个订阅者。
Many-to-many interactions: one or more events can affect one or more subscribers.
然而GWT不能进行多对多的映射，因为它仅在代码层级进行操作。
And the many-to-many mapping cannot be achieved by GWT because it operates at the code level.
这些包括一对一和一对多构成关联，以及多对一和多对多的聚合关联。
These include one-to-one and one-to-many composition associations and many-to-one and many-to-many aggregation associations.
我们不会采取这种方法，而是使用更传统的多对多模型，如清单2所示。
Instead of taking this approach, we will use a more traditional many-to-many model, as shown in Listing 2.
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。
You can use one-to-many or many-to-many relationships for lookup relationships that map one value to multiple other values.
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。
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.
另一方面，如果一个作者拥有多本书籍，一本书又有多个作者，就称为多对多关系。
On the other hand, if one author can have multiple books, and one book can also have multiple authors, it's called a many-to-many relation.
Volta提供了语言(用于写代码)与运行时(用于执行代码)间的多对多映射。
Volta provides a many-to-many mapping between the languages in which the code is written and the runtime where the code executes.
当然，我将把它建模为一个“多对多”关系，因为我希望我的参赛者可以参加多项比赛。
And of course, I'll be modeling it as a many-to-many relationship because I hope my runners will run more than one race.
这种模式的缺点是稍微增加了一点复杂性，事实表与U cat表之间存在多对多的关系。
The disadvantage of this schema is a slightly increased complexity with a many-to-many relationship between the fact table and the UCAT table.
当涉及到复杂的、嵌入式软件时，就会导致一个上千——或许上百万种可能分配的多对多决策树。
When complex, embedded software is involved, this leads to a many-to-many decision tree with thousands — perhaps millions — of possible allocations.
一本书可能有多位作者，就是说dw_books和dw_authors表之间存在多对多的关系。
A book can have multiple authors, which means that there's a many-to-many relationship between the dw_books table and the dw_authors table.
在本篇专栏文章中，我将讨论一个典型的多对多建模问题，并研究为那种信息创建xml模型时的某些选项。
In this column, I'll take a look at a typical many-to-many modeling challenge, and go through some options you have when creating an XML model for that information.
如果我要使用一个关系表结构来设计这个关系，至少需要3个表：第3表将是链接一个“多对多”关系的联接表。
If I were to use a relational table structure to design this relationship, I'd need at least three tables: the third being a join table linking a many-to-many relationship.
在P 2 P模式中，消息的生产者通过队列传送消息给特定的消息消费者，而发布—订阅模式则以一对多或多对多的方式进行消息的传播。
In P2P mode, a message producer sends a message to a specific message consumer through a queue, whereas pub-sub is intended for the one-to-many or many-to-many broadcast of messages.
在一个由多个系统组成的系统中，通常会有一个逻辑元素(子系统)和物理元素(在RUPSE中被表示为位置或设计节点)之间多对多的映射。
In a system of systems, typically there is a many-to-many mapping between logical elements (subsystems) and physical elements (represented in RUP se as localities or design nodes).
我们自己就有那么多的小事要烦心，那么多的电话要打，那么多的事情要料理，几乎没有时间再对他人产生真挚的关心。
There are so many details, so many calls to make and so many things to look after that we barely have time for sincere and genuine interest in others.
对控制多趾的相关基因及其分子机制进行研究，有利于我们深入了解多指（趾）畸形的形成机制，揭示肢体发育的过程和机理。
Study the genes of polydactyly and molecular mechanism can help us to know how limbs form and reveal the producing process of limbs.
一项对灵长类动物的最新研究表明，它们的行为的无私远比科学家所想象的要多的多，尽管一些研究人员对此持怀疑态度。
A new study of these primates in the wild suggests that they are far more selfless than scientists have given them credit for, though some researchers have their doubts.
一项对灵长类动物的最新研究表明，它们的行为的无私远比科学家所想象的要多的多，尽管一些研究人员对此持怀疑态度。
A new study of these primates in the wild suggests that they are far more selfless than scientists have given them credit for though some researchers have their doubts.
今天，在耐多药结核估计病例中只有约3%根据世卫组织标准进行治疗，而不同的公立和私立医疗提供者对更多的耐多药结核病人处理不当。
Today, only some 3% of these estimated cases of MDR-TB are being treated according to WHO standards, while many more MDR-TB patients are mismanaged by various public and private providers.
今天，在耐多药结核估计病例中只有约3%根据世卫组织标准进行治疗，而不同的公立和私立医疗提供者对更多的耐多药结核病人处理不当。
Today, only some 3% of these estimated cases of MDR-TB are being treated according to WHO standards, while many more MDR-TB patients are mismanaged by various public and private providers.
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