a navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth by computing the time difference for signals from different satellites to reach the receiver
例句
用作名词 (n.)
The deal to the Russian system is the world's second global positioning system. 俄罗斯的格洛纳斯系统是世界上第二套全球定位系统。
The aircraft drifts until its onboard Global Positioning System tells the craft it has floated too far. 飞行器会一直滑行直到它自身的全球定位系统告诉它已经滑行很远。
美
