hydrographical

In the area, the factor of landform, ground vegetation and parent material and hydrographical condition were surveyed.

考察研究了样的地形地貌、植被、母质和文等成土因素；

Multi radar signal and AIS data can be merging displayed and integrated display radar signal, video map, hydrographical meteorology data and database file of the ship.

可将多雷达信号、AIS数进行融合显示，并综合显示雷达信号、视频地图、文气象数及船舶档案数。