Even if Russia starts producing GPS-compatible transceivers, it has no chance of defeating Navstar GPS, which has dominated the world market for almost 20 years.

即使俄罗斯开始生产与GPS间通的接收机，也没有机会击败GPS系统，该系统已经统治全球市场近20年。

The NAVSTAR Global Positioning System is one poss essing great development capability and permeable capability which application area outstrips its original design requirements.

全球定位系统是一个具有巨大发展潜力和深透能力的系统，它的应用范围已超出了其原来的设计要求。

This article has been prepared to acquaint potential users with the fundamental principles of the Navstar Global Positioning System(GPS)and the utilization of GPS equipment in many fields.

本文旨在使读者了解GPS 系统的基本原理及其在各种场合的应用。