| 微软, 巴西 |
Global Positioning System (A radio navigation system developed by the U.S. Department of Defense that uses a constellation of 24 earth satellites, which are monitored by ground-based control stations, to provide precise, continuous worldwide positioning and timing information); GPS (A radio navigation system developed by the U.S. Department of Defense that uses a constellation of 24 earth satellites, which are monitored by ground-based control stations, to provide precise, continuous worldwide positioning and timing information) |
