A relation is defined graphically without writing code and it can serve many purposes in an application.

一个关系通过图形方式定义，无需编写代码；它可以满足一个应用程序中的多个目的。

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A relation is defined between two tables by specifying key columns that link the tables, most commonly regular relations such as customer-to-orders.

两个表之间的关系通过指定链接表的键列来定义，最常见的常规关系比如“客户-订单”。

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This book tells a harsh and forbidding story, and makes one wonder just exactly what its relation with truth is.

这本书讲述了一个残酷而令人生畏的故事，让人不禁想知道它与真理究竟是什么关系。

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Body mass index,or BMI, is a measure of a person's weight in relation to height.

VOA: special.2011.02.15

He says, "This book tells a harsh and forbidding story and makes one wonder just exactly what its relation to truth is.

他这样写道：,“这书讲的是一个既冷血,又令人恐惧的故事,将人置于一个总想知道,它与现实关联的状态“

耶鲁公开课 - 1945年后的美国小说课程节选

All right, this is what's called a recurrence relation, there are actually cool ways to solve them. We can kind of eyeball it.

好，这就是所谓的递归关系,也就是解决问题的相当好的办法,我们可以来看看。

麻省理工公开课 - 计算机科学及编程导论课程节选

You do not pay for a bag if it is used in relation to a service, such as having your shoes repaired.

BBC: Quiz: When do you have pay for a carrier bag in Wales?

So would a big vote for his nearest rival, Mustafa Barghouti (a clansman but not a close relation of Marwan), who is campaigning on another issue that bothers Palestinians a lot: corruption in the Palestinian Authority.

ECONOMIST: Palestine's election

Another huge advantage in relation to a standard setup is that the 2 metal pedals are built directly into the system, further increasing stability.

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