UML includes a set of graphical notation techniques to create abstract models of specific systems.

基于UML包括一套图形符号技术创造抽象模型的具体制度。

Geological symbols generally have the specific graphical features and geological significances and can be used to present some concrete or abstract objects in geological drawing.

地质符号一般均有其特定的图形特征和表示意义，用以表达地质制图中所涉及的具体或抽象的地质对象。

In this paper, the design idea and construction of a popular graphical user interface management system are introduced and the typical abstract data construction and basic functions described.

本文介绍了一个通用图形用户界面管理系统的设计思想和组织结构，并描述了该系统中典型的抽象数据结构及基本组成函数。

A formal model of PASCAL process blueprint, graphical notations of abstract logic structure diagram, and a fundamental programming procedure...

文中给出PASCAL过程蓝图的形式化模型，抽象逻辑结构图的图形表示方法，以及程序设计的基本过程。