CSEL provides military personnel with precise geo-positioning information and secure, over-the-horizon (OTH) and line-of-sight (LOS) two-way data communications capabilities.

“作战幸存者/逃逸者定位器”为军事人员提供精确的地理定位信息和安全，超视距（OTH）和视距（LOS）双向数据通信能力。

youdao

Remote-sensing technique(RS)combined with global positioning system(GPS)and geo-graphic information system(GIS)is currently an advanced method in the world to investigate soil erosion.

用遥感技术，结合全球定位系统、地理信息系统进行水土流失调查是目前国际上比较先进的方法。

youdao

Several models have been put forward as to how such a feat of "geo-engineering" might actually be achieved, most involving the positioning of a reflective shield of some sort out in space.

CNN: The shield of Ra: Could solar reflection save the planet?