China would require an extensive database of accurate topographic information to use terrain comparison (TERCOM) guidance.
中国需要一个大规模精确地形信息数据库去用于地形匹配(TERCOM)制导。
2
At last, according to the newest coastal zone topographic map standard, the author designs the coastal zone topographic map symbol database with COM.
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。
3
In CIG software design, the regularCIG algorithm programing, topographic matching, collision testing and moving target processingmodulars in tank 3D scenery database have been accomplished.