Navit is a open source (GPL) car navigation system with routing engine. It s modular design is capable of using vector maps of various formats for routing and rendering of the displayed map. It s even possible to use multiple maps at a time.

使用MAPX4.0组件用DELPHPI6.0编写的gps和GIS管理程序。mapx for csharp。mapx和arcgis engine和arcgis server,AO，MO，google map一样都是GIS开发组件。-Use MAPX4.0 components prepared with DELPHPI6.0, and GIS Manager gps. mapx for csharp. mapx and arcgis engine and arcgis server, AO, MO

JDL-1988RGB-16*16-HUB41制版说明： 1.FR-4,TOP层绿油白字,BOT层绿油白字，喷锡。 2.所有的过孔必须阻焊处理。 3.参数：最小间距： 0.254mm 最小孔径： 0.5mm 最小线径： 0.3mm 板 层： 双面板 板 厚： 1.6mm 尺 寸： 95.5mm*95.5mm(上下各3mm工艺边) 4：打样8块 5：填单日期:2010-12-30, 6：送货送货间:2010-1-5 -GPS veh