However, due to the complex environment, and the accuracy of such in limitations locating time, existing positioning technologies have some shortcomings.

但是由于精度、复杂环境，以及定位时间等条件的限制，现存定位技术存在一定的缺陷。

youdao

The clock signal provided by Global Positioning System(GPS)is widely used in electric power system for relay protection, SOE (Sequence of Events), fault locating, synchronous sampling and so on.

GPS同步时钟信号已在电力系统的继电保护、事件顺序记录、故障测距、同步采样等诸多领域获得重要运用。

youdao

The list included companies as diverse as Garmin and John Deere and any company that sells products that utilize global positioning for airline or sea navigation, for planting seeds in a field, for locating lost climbers or hikers in the wilderness and so forth.

FORBES: Lights Out As LightSquared Files For Bankruptcy