In computer graphics,emphasizing a given display group by changing the attitudes of all the other display groups in the same display field. 在计算机制图技术中，通过改变同一显示场中所有其它显示组的属性来加强给定显示组的显示效果。
The integration of computer mapping and the electronic publishing production system changes the traditional procedure of map design and map production. 计算机制图与电子出版生产系统一体化，从根本上改变了地图设计与生产的传统工艺。
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