网际网路地图符号设计之评估。
本文探讨了制约地图符号设计的内在的基本规律，提出了地图符号的约定性原则和等价性原理。
The existing regularity which has an important influence on the design of map symbols is studied in this paper.
地图要素与地图符号类型之间的关系长期被人们忽略。但它确是专题地图设计专家系统中不可缺少的重要环节，是地图符号设计的基础。
The relationship between map element and map symbol, which is the important key link of Thematic Map Design Expert System and the basis of map symbol design, has always been ignored.
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