Following these policies, the primary school launched an "agricultural class base" on one of its schoolyards.
遵照这些政策，这所小学在其中一个操场上开设了“农业课基地”。
We must integrate consolidation of the Party's class Base with expansion of its mass Base.
坚持增强党的阶级基础和扩大党的群众基础相统一。
The move sparked warnings that the chancellor was punishing the Conservatives' middle class base and undermining stay at home mothers.
这一举动警告大众，这位大臣正在惩罚保守党的中产阶级基础并冲击居家母亲的腰包。
Main depicted mathematical modul of national information infrastructure and class base management system of multidimensional information.
主要提出描述国家信息基础结构的数学模型和多维信息的类库管理方法。
In this case, we have it just print a message to the console and then call the base class version for actual handling.
在此例中，我们仅让它向控制台打印一条消息，然后调用它的基类版本来执行实际的处理。
In fact, you can substitute the base class for every node object, giving your whole application custom behaviors.
事实上，您可以置换每种节点对象的基类，从而能够定制整个应用程序的行为。
The base layout class defines the global methods and the declarations that different form applications use.
基本布局类定义了不同的表单应用程序使用的全局方法和声明。
Connections are established by creating instances of the PDO base class.
连接是通过创建pdo基类的实例而建立的。
To begin we create an abstract base class which represents the service we want to expose.
首先，我要创建一个抽象基类，用于表示我们要公开的服务。
While technically not meant to act as a generic base class for addresses, it could be used for that purpose.
虽然从技术的角度看，其没有打算充当地址的通用基类，但还是可以这样来使用。
You might think, reasonably enough, that the same enhancement can be accomplished simply by subclassing the XO base class.
您可能会非常合理地想到，也可以定义xo基类的子类来实现同样的增强。
The application's style sheet source should immediately follow the declaration of the application's base class (see Listing 5).
应用程序的样式表源代码应该立即出现在应用程序基类声明之后(参见清单5)。
You can then use the base class, or any of the subclasses, in methods that are typed to expect the base class as a method argument.
然后您就可以在键入的以基类作为方法参数的方法中使用基类或任何一个子类。
Subclassing the class is typically not an option here, since the method needs to be available to instances of the base class itself.
在这种情况下，继承这个类通常是行不通的，因为所添加的方法需要在基类的实例中可用。
Accessors reduce the risk of the fragile base class problem where changes in a superclass ripple throughout its subclasses.
读写方法减少了超类中的更改影响到其子类的这种脆弱的基类问题所带来的风险。
The basic solution is to define a base class or interface that can be accessed by the statically compiled code, then extend that base class or implement that interface in the generated class.
基本的解决方案是定义可以用静态编译的代码访问的基类或者接口，然后生成的类扩展这个基类或者实现这个接口。
To model inheritance, use the generalization relationship provided by the UML modeling palette, which is drawn from the inherited class to the base class.
要建模继承，可以利用由uml建模面板提供的一般化关系，它是从继承类到基础类而绘制出来的。
Marking the base class as "private" allowed the derived class to inherit from it without actually becoming one of them.
将基类标记为 “私有”允许派生类从该基类继承而来，而无需实际成为 一个基类。
The customer class can be an abstract base class for a family of different customer types, such as private or business customer.
客户类可以是用于许多不同客户类型的抽象基类，比如说私有客户或业务客户。
Access to data fields inherited from a virtual base class is not supported.
不支持访问从虚拟基类继承的数据字段。
Another use of abstract classes is to create a single base class for multiple derived classes in which that base class should never be instantiated.
抽象类的另一个用途是为多个派生类创建一个基类，在这些派生类中，基类决不会被实例化。
Figure 1 presents a base class for persistent entities that contains the necessary auditing fields.
图1为包含审计字段的持久化实体提供了一个基类。
Contrast the use of an abstract base class against an interface?
对比抽象基类和接口的使用。
The derived classes have the same dynamic class attributes of the base class.
派生类具有跟基类相同的动态类属性。
The parts that are common throughout all your systems go to a base class you always use.
在整个系统中都会使用的部分可以放到基类里面。
To keep the framework simple, all additional SOA error handlers will sub-class from this base class.
要使得框架简单，所有附加的SOA错误处理都将作为继承此基类的子类。
The idea of inheriting from a base class without being able to downcast to it or upcast to the base just seemed silly.
继承一个基类而无法将它向下或向上转换到基类的理念是不明智的。
Therefore it is a good idea to create a generic base class that can be reused later.
因而，最好是创建一个可重用的通用基类。
Every class in Flex that extends from the base class Sprite, has an embedded graphics object in it.
Flex中每个从基础类Sprite扩展而来的类都具有一个嵌入的图片对象。
Next, look at the ValidValuesTable class, the base class for all specific list values classes (Listing 6).
接下来，看一下validvaluestable类，这是所有特定列表值类的基类(见清单6)。
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