地面: the earth's surface; ground数据: data; record; information数字化地图: digitize maps地面数据: ground data; ground datum地面数据线: terrestrial data line地面数字电视: dttv; tnt地面数字链路: terrestrial digital link地面数据采集: surface data acquisition地面数据回收: ground data recovery地面数据设备: ground data equipment地面数据系统: ground data system数字化数据: digitalized data; digitized data地面数字电视广播: dttb地面数字视频广播: digital video broadcasting-terrestrial; dvb-t: dvb-terrestrial地面数字音频广播: digital audio broadcasting-terrestrial地面数据采集系统: ground data acquisition system地面数据处理系统: ground data handling system; ground-data handling system; ground-data processing system地面数据传输线路: terrestrial data line地面数据读出设备: ground readout equipment地面数据读出站: ground readout station地面数据链处理器: gdlground data link processor地面数据显示设备: ground data display equipment大容量地面数字业务: hctds high capacity terrestrial digital service地面数字多媒体广播: t-dmb光学数据数字化器: optical data digitizer