一对多

In this article we will start with a basic LINQ to SQL example and then see how we can implement one-many and one-one relationship using 'Entityref' and 'EntitySet'.

在这篇文章中，我们将会有一个基本的LINQ to SQL的例子，然后看看我们如何可以实现一对多和一对一的关系，使用'Entityref'和'EntitySet'。

So below is the class entity snippet for customer class which shows how it has used 'EntitySet' to define one-many relationship with address class.

因此，下面是客户类，显示如何利用'EntitySet'来定义一个地址类的一对多关系的类的实体片段。

A contour tree has found many important applications in map generalization,terrain analysis,etc.with respect to generating contour tree,this paper has proposed a scan-line based method,this method translates intersection point pair of scan-line and contour line as range,explains containment relation between range as containment relation between contour lines,determines "one-many" direct containment relations between parent contour and child contour by this method.

中国科学院计算所，北京 100080摘要等高线树在地图的产生、地形分析等应用中具有较重要的应用。对于产生等高线树，提出了一种基于扫描线的方法，该方法把扫描线和等高线之间的交点对解释为区域，利用区域之间的包含关系对应等高线之间的包含关系，以这种方式来确定父等高线与子等高线之间的"一对多"直接包含关系。

To take full advantage of this one-to-many communication advantages.

要充分利用这种一对多的传播优势。

This is the standard one-to-many relationship.

这是标准的一个一对多的关系。

This relationship was defined in the designer as a one-to-many relationship and now can be accessed in this manner.

这种关系中设计器为一对多的关系定义的并且现在可以以这种方式进行访问。

Because the database has two tables with a one-to-many relationship, we naturally want to show the data accordingly.

由于数据库的两个表一个一对多的关系，我们自然要相应地显示数据。

According to the one-to-many communication pattern, we study the use of multicast in distribution interactive simulation.

根据仿真应用存在的一对多的通信模式，本文研究了组播通信技术在仿真系统中的应用。

Which is master and the other is slave, is the realization of one-to-many relationship.

对兴建两个数据结构，其中一个典型的任务，是关系硕士，另一种是奴隶，是一个实现一对多的关系。

For example, the Category class above has a one-to-many relationship with the Product class.

例如，上边的Category类和Product类之间有一个"一对多"的关系。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。