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05.ESA Euronews- Navigation by satellite

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上传时间： 1970-01-17
上传自： iCan
标签： Euronews
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Uploaded on Apr 22, 2011 Today GPS is a common and extremely useful tool. Europeans wanted to refine its accuracy by developing EGNOS, the precursor of the Galileo constellation. We look at satellite navigation and its applications.

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