Map symbol with fine quality is the precondition that enrich map content, tone up the legibility of map, convenient for editing of map.
高质量的地图符号是丰富地图内容、增强地图的易读性和便于地图编绘的必要前提。
The symbol expressing, operating, constituting and editing methods of conceptual parts are discussed, visually editing of product functions during conceptual design is realized.
讨论了概念零件的符号表示、运算、构造和编辑方法，实现了概念设计阶段产品功能的可视化编辑。
The symbol expressing, operating, constituting and editing methods of conceptual parts are discussed, visually editing of product functions during conceptual design is realized.
讨论了概念零件的符号表示、运算、构造和编辑方法，实现了概念设计阶段产品功能的可视化编辑。
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