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- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- I want to buy auto GPS Navigation ， please and contact us. 我们需要求购汽车GPS导航，请尽快与我们联系。
- I need to buy auto GPS navigation ,please and contact us. 我们需要购买汽车GPS导航，请与我们联系。
- We want to buy car GPS navigation system,please with contact us. 我们需要购买汽车GPS导航系统，请尽快与我们联系。
- The compass is an instrument of navigation. 罗盘是航行仪器。
- I am looking for Garmin GPS Navigation system for the USA Market. 如果您是本网注册会员，请登录后查看联系方式。
- I need to buy Automobile GPS Navigation,please with contact us. 我们需要求购汽车导航，请与我们联系。
- The theory and practice of aircraft navigation. 航空学飞机航行的理论与实践
- navigation GPS receiver 导航型GPS接收机
- navigation GPS 导航型GPS
- Navigation is difficult on this river because of the hide rock. 因为有暗礁，在这条河上航行很困难。
- Aerial navigation by visual identification of landmarks. 地标领航用可视地标来进行飞机航行
- GPS navigation systems must take it into account to work accurately. gps导航系统必须把这个变数考虑进来，才能准确运作。
- Projectiles will probably eventually have fins for GPS control and navigation. 电磁炮的弹丸最后可能会安装一些翼面，目的是为了接收gps信号和完成气动控制。
- GDOP is an important concept of GPS. GDOP是GPS系统中的一个重要概念。
- Other options include xenon headlamps, a removable hardtop and GPS navigation. 其他配选配置还包含了疝气大灯、可硬顶篷和GPS导航系统。
- GPS satellites, for comparison, orbit at36,000 km. 相比较而言，gps卫星的轨道是在海拔2万2千公里的高空。
- Keywords: GPRS; GPS; GIS; Protocol; Design?? 关键词：通用分组无线业务；全球定位系统；地理信息系统；协议；设计??
- More accurate distance calculation in GPS mode. 更精确的距离计算在GPS模式下。
- The GPS programme source code used by taxies, Asm. 一个自行设计的GPS的出租车使用的程序源代码。
