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单词 longitude table
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longitude table
longitude table n. now historical a table (table n. 14a) formerly used in ascertaining longitude in association with a chronometer or observations of celestial objects.
ΚΠ
1764 J. Robertson Elements Navigation (ed. 2) II. viii. v. 566 Which completes the first two columns of the longitude table.
1900 D. E. Smith Teaching Elem. Math. v. 129 The astronomer and the navigator who wish brevity always use longitude tables.
2012 M. Anderson Day World discovered Sun iv. 64 As a convenience to him and his colleagues at the Royal Observatory, Maskelyne centered the Mariner's Guide's longitude tables at Greenwich.
extracted from longituden.
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