抽象类

A class containing one or more pure virtual functions is an abstract base class .

含有一个或多个纯虚函数的类是抽象基类。

Doctor class is our base abstract strategy class.

医生类是抽象的策略，我们的基础类。

Decision properties are derived from constraints and are primitive data representing the status of design objects Performance properties calculate decision properties and the domain are bounded by design constraints.

决策参数是从限制条件中抽象出来的数据，代表设计对象的属性或状态；表现参数是对决策参数的计算和度量；限制条件规范及限制表现参数的域值，可视为类不变量，每个类对象都必需满足之。

Correspondence principle curriculum is one of the most important basic courses for the undergraduate of electrical or communication major, but the principle and concept in this curriculum is so abstract and difficult that students hard to understand, it must prepare certain experiment for them.

论文摘要：通信原理课程是本科电子类，通信类专业的重要基础课程之一，但是通信原理课程中的原理、概念抽象，理论性强，学生单凭老师上课的讲解难以掌握，这就要求配备一定的实验操作。

NET 2.0, they finally fixed XmlSerializer such that it allows you to serialize and deserialize an abstract base class instead of only concrete classes.

NET 2.0，终于固定XmlSerializer的，这样它允许您序列化和反序列化一个抽象基类，而不是只具体类。

It also discusses and generalizes the featUre modeling method of complicatedplastic products such as automobile instrument panel of LIEBAO.

阐述了基于程序设计的静态定义特征类和基于特征抽象的动态定义特征类的方法。

Dependency Inversion Principle states that we should decouple high level modules from low level modules, introducing an abstraction layer between the high level classes and low level classes.

依赖倒置原则声明了我们应该将高层模块和低层模块解偶，在高层类和低层类之间引入一个抽象层。

In SPVT (security protocol verifying tool), the specification language is the π-like calculus extended with three appendixes, the Dolev-Yao model is described with Horn logic rules, the π-like calculus model of security protocol is transformed into the logic program model by abstract rules, the security properties are verified based on the calculus of the logic program's fixpoint, and the counter-examples on security properties are constructed from the process of the fixpoint calculus and the process of the property verification.

在SPVT中，以扩展附加项的类演算作为安全协议描述语言，以扩展附加项的Horn逻辑规则描述协议攻击者的Dolev-Yao模型，通过一组抽象规则将安全协议的类(演算模型转换为逻辑程序模型，基于安全协议逻辑程序的不动点计算验证安全性质，从安全协议逻辑程序的不动点计算和安全性质的验证过程中构造不满足安全性质的安全协议反例。

OpenC++ parses and analyses a C++ translation unit, creating its abstract representation in the form of objects representing entities that occur in C++ programs: expressions, environments, types, classes, and class members.

OpenC ++解析和分析的C ++翻译单元，形成其在实体的代表在C +对象的形式出现的抽象表示+程序：表达式，环境，类型，类和类成员。

They have also suggested that the very concept of abstract numbers— the idea of a oneness, a twoness, a threeness that applies to any class or objects and is a prerequisite for doing anything more mathematically demanding than setting a table— is itself far from innate.

这也同样表明：应用于任何类和物体的抽象数字，如，一维性、重性、重性是做比摆桌子这类更具数学要求的事情的先决条件——这并不是天生就决定了的。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失