A class is a concept in a domain.
类是域中的一个概念。
If you need a domain name, buy one.
如果需要域名就买一个。
Principle 6: Produce a domain model
原则6：提出域模型
Create a domain with the mkdom command.
用mkdom命令创建一个域。
Produce a domain model for the case study.
为案例研究制作一个域模型。
The users that belong to a domain must be unique.
属于一个域的用户必须是惟一的。
Always perform a domain level backup and restoration.
始终在域级别执行备份和恢复。
The BlogPost is a domain class specific to our system.
BlogPost是我们系统特定的一个领域类。
Stick to the same characters you'd use for a domain name.
坚持使用在域名中出现的相同字符。
Model – The model is a domain specific representation of data.
模型——模型是特定于领域的数据表现形式。
Top-level domain is the last part of a domain name address.
最高级域名是域名地址的最后一部分。
Know the link between a web form input and a domain model property.
知道Web表单输入和域模型属性之间的联系。
How many segments is a domain name divided into? What are they?
一个域名分成多少部分？各部分是什么？
Each tag URI includes either a domain name or an E-mail address.
每个标签uri都包括域名或者电子邮件地址。
Register a domain name if you want people to find your website.
想要别人找到你的网址，就注册一个域名。
To explore or manage a domain, you first need a virDomainPtr object.
要探究或管理域，首先需要一个virDomainPtr对象。
On this page is a domain name, such as djdzxdmb99068.cloudfront.net.
在这个页面上有一个域名，如djdzxdmb99068.cloudfront.net。
Now try to understand the concept of a domain and how it fits in here.
现在，试着理解领域的概念以及它在这里的作用。
Here is part of a domain class diagram for a deal capture application.
下面是一个交易描述应用程序的部分领域类图。
Cannot change the primary group ID of a domain controller account.
不能改变域控制器帐户的主要组id。
Every single website operator must have a domain name to function.
每一个网站的运行者必须有一个域名才能运作。
The wizard was unable to locate a domain controller for this domain.
向导无法定位该域的域控制器。
This shows that the service is now being controlled by a domain user account.
这说明该服务现在通过一个域用户帐户控制。
For a domain element, the value of the attribute must start with a plus sign.
对于域元素，该属性的值必须以加号开始。
The model is clear and unambiguous, even to someone who is not a domain expert.
其模型非常清楚，没有含糊不清的地方，甚至对于不是领域专家的人员也是如此。
Another rule of thumb is that client classes do not belong in a domain package.
另一条经验就是客户机类并不属于一个域包。
It is always wise to review and validate a domain model with subject matter experts.
在问题专家的参与下回顾和确认领域模型总是明智的。
It is always wise to review and validate a domain model with subject matter experts.
在问题专家的参与下回顾和确认领域模型总是明智的。
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