electronic navigation map

基本解釋

One kind of data structure of navigation electronic map is proposed.
給出了滿足導(dǎo)航電子地圖的數(shù)據(jù)結(jié)構(gòu)。
The accurate, real-time and comprehensive navigation data is the soul of navigation electronic map.
準(zhǔn)確、實(shí)時(shí)、全面的導(dǎo)航數(shù)據(jù)是導(dǎo)航電子地圖的靈魂。
The development of navigation electronic map is stepping into bottleneck stage, in which the update speed of map is slower than the change speed of real world.
中國導(dǎo)航電子地圖的技術(shù)發(fā)展正處在瓶頸階段，即地圖的更新趕不上現(xiàn)實(shí)世界的更新速度。