我们将数据库当作一个单实例对象，以将database类限制为1个实例。
We made our database a singleton in order to limit the database class to only one instance.
从学术自由权成立的正当性出发，有三类限制或禁止学术自由的行为是应予允许的。
To some extent, violation of academic freedom is in common with other tortuous acts.
DOM是W3C为一类限制相当严格的应用程序设计的，这类应用程序就是Web浏览器。
DOM was designed by the W3C for a fairly restricted class of applications: Web browsers.
某些存储库，尤其是那些没有真正项目类的存储库，没有这种限制。
Some repositories, particularly those without true item classes, do not have this restriction.
该草案还倾向于限制基于实际股票的那类凭证。
The proposal also aims to limit notes based on actual shares.
可以对类和属性应用不同的限制。
You can apply various restrictions to classes and properties.
对类单词和基本单词的含义进行限制。
如果您知道某些类可能改变，那么如果在改变确实发生时限制改变的范围有意义，您就可以选择在一两个组件中实现它们。
If you know that some classes are likely to change, then you may choose to implement them in one or two components if it makes sense to limit the scope of the changes when they do occur.
这允许灵活地为任何类过滤器分配任意的日志级别，而不存在外部限制。
This provides the flexibility to assign any logging level to any class filter without external restrictions.
因此，这种理论提出的各种限制条件将确定哪些行星可支撑生命——至少是类地生命。
And so the limits of Darwinian evolution will define the range of planets that can support life - at least Earth-like life.
在AOP编程中使用元数据将类与方面之间的耦合限制为附加在程序元素上的元数据。
Using metadata in AOP programming limits the coupling between classes and aspects only to the metadata attached to the program elements.
事务策略的其中一个限制，就是客户机层(或表示层)类对任何给定事务工作单元只能发出单一的api层调用。
One of this transaction strategy's restrictions is that the client-layer (or presentation-layer) classes can make only a single call to the API layer for any given transactional unit of work.
具有更加严格的项目类的存储库会将元数据操作限制到项目类内部的属性范围内。
Repositories with more rigid item classes will restrict metadata operations to those properties within the item class.
使用对象池限制特定类的实例的数量。
Object pools are used to restrict the number of instances of a certain class.
对于将要序列化的客户机类还有一些附加限制。
There are a few additional restrictions on a client class that's going to be serialized.
使用Python 2.2，我们获得了一种创建 “限制”类的新机制。
With Python 2.2, we gained a new mechanism for creating "restricted" classes.
然而它仍是一个非常遗憾的约束，因为它限制了适合于转换成mixin的类集合。
Nevertheless, it's a very unfortunate restriction because it limits the set of classes eligible to be turned into mixins.
有关SpecialPage类构造函数(利用它可限制访问、隐藏页面等)的更多信息，请查阅特殊页开发指南页面(参见参考资料)。
Check the Special Pages developer's guide page (see Resources) for more information about the SpecialPage class constructor, which will let you restrict access, hide the page, etc.
单例模式可能是最常用的OOP设计模式之一了；它限制了一个类的对象实例数只能为1。
The singleton pattern is probably one of the most often used OOP design patterns; it restricts the number of object instances of a class to one.
“限制”类产业和行业项目的权力下放。
Power delegation involving industries and sectors in the "Restricted" category.
您依然可以在Eclipse编写和编译，但由于类加载器的限制，Eclipse是无法启动的。
You could still write and compile in Eclipse but you will not be able to launch it due to class-loader limitations. To configure your Java ME project to include JSR-238 support.
direct调度方法的限制是控制器类只能实现一个api。
A limitation of the direct dispatching approach is that a controller class may implement only one API.
我们可以在一个地方定义通用的方法，然后将它们混入跨越多个类类型的对象，同时限制对每个对象为基础的敏感方法的访问。
We can define generic methods in one place and mix them into our Objects across multiple Class types while limiting access to sensitive methods on a per Object basis.
有时我们想限制可能出现的泛型类的类型实例化。
Sometimes we want to restrict the potential type instantiations of a generic class.
其他方式是交叉类、联合类、补充类、限制类和枚举类。
The other types are intersection classes, union classes, complement classes, restrictions, and enumerated classes.
尽管一些更为严格的要求每一个邮件都要被版主检查，但是这一类的守门已经很少再使用了，因为它限制了讨论的发生。
Although some go even further and require each mail to be checked by amoderator, this kind of gatekeeping is rarely used anymore because it holds updiscussion.
类库是可以重新使用的，但他们可能被限制于语言运行时环境。
Class libraries are reusable, but with the caveat that they be bounded by the language runtimes.
类库是可以重新使用的，但他们可能被限制于语言运行时环境。
Class libraries are reusable, but with the caveat that they be bounded by the language runtimes.
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