单词 | Global Positioning System |
释义 | Global Positioning System [`glō·bǝl pǝ`zish·niŋ ´sis·tǝm] NAVIGATION A positioning or navigation system designed to use 18 to 24 satellites, each carrying atomic clocks, to provide a receiver anywhere on earth with extremely accurate measurements of its three- dimensional position, velocity, and time. Abbreviated GPS. |
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