The following sections review these functions as they are coded in the sample, and discuss the concepts of relationship, template and scope.
下面几部分再看一下在样本中是如何对这些函数进行编码的，同时还将讨论关系(relationship)、模板(template)和范围(scope)等概念。
In this article I'll try to do just that, starting with sample code to demonstrate how common types of operations can be coded in each of the models.
本文中，我将尝试进行这个工作，从样本代码开始，来演示如何在每个模型中编码公共类型的操作。
They coded each sample and sent them to the lab for analysis.
他们把每个样本都编了代码并送到实验室分析。
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