从地图符号的本质和特征入手，根据具体应用把海岸带地形图符号进行分类和数据分层。
Beginning with the nature and character of map symbols, it classifies coastal zone topographic map symbols and data according to the actual application.
最后，利用组件技术，设计完成了符合最新海岸带地形图图式标准的海岸带地形图符号库。
At last, according to the newest coastal zone topographic map standard, the author designs the coastal zone topographic map symbol database with COM.
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