作为一项电子测量技术，UWB比全球定位系统卫星更精确，它可以在室内使用。
As an electronic measuring technology, UWB is more accurate than Global Positioning System satellites, and it can be used indoors.
GPS35卫星是全球定位系统卫星星座中的一颗卫星，它的对地一侧安装了激光后向反射器，可实施激光测距观测。
GPS35 satellite is one of the constellations of the Global Position System, it was equipped with laser retrorefractors toward the earth and can be observed with SLR.
有这样的竞争对手是不可避免的。随着太空科学技术的扩散，其他国家不再为像卫星全球定位系统这样的东西而讨美国欢心了。
Such competition is inevitable, as space technology spreads and other countries are no longer forced to rely on America's good offices for things like satellite-based global positioning systems.
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