科学与环境
To keep GPS constellations from drifting, look to the moon
来源: Phys.org - latest science and technology news stories · 发布于
Global positioning systems are a key feature in everyday life for much of the world's population. Whether it's ensuring a ship delivers its goods safely or helping you avoid a road closure on your commute home, GPS can help.
Global positioning systems are a key feature in everyday life for much of the world's population. Whether it's ensuring a ship delivers its goods safely or helping you avoid a road closure on your commute home, GPS can help.
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