作为抽象的主要方法，类的使用在面向对象框架设计中是很关键的。
The use of the class as the primary means of abstraction is key to object-oriented framework design.
在这些系统中，我们提出了多种设计模式和面向对象框架。
We used design patterns and object-oriented framework technology extensively in these systems.
多面向对象框架支持：与多种面向对象语言和开发环境的兼容。
Multiple object-oriented framework support: This is when a product offers compatibility with multiple object-oriented languages and development environments.
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