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Google圖書搜尋
Annual Precise Time and Time Interval (PTTI) Applications and Planning Meeting
出版
National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division
, 1994
URL
http://books.google.com.hk/books?id=u5r-6mT-NRsC&hl=&source=gbs_api
EBook
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