基本解釋[地球科學(xué)]數(shù)字海圖英漢例句雙語例句A method for constructing an undersea digital elevation model(DEM) was proposed, using the soundings and coastline elements in a vector nautical chart.分析了矢量電子地圖的現(xiàn)狀，對採用麪曏對象的數(shù)據(jù)模型和數(shù)據(jù)結(jié)搆實現(xiàn)矢量電子地圖進行了研究。The digital information of electronic nautical chart used by this institute is realized by its system of the automatic generation of electronic nautical chart database.該系統(tǒng)所用的電子航海圖數(shù)字化資料以該所的電子航海圖數(shù)據(jù)庫自動生成系統(tǒng)完成。digital nautical chart更多例句專業(yè)釋義地球科學(xué)數(shù)字海圖