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单词 time sight
释义

time sight

Nautical (now chiefly historical )
noun
An observation of the altitude of the sun or a star for the purpose of ascertaining the time and hence the longitude.

Origin

Early 19th century; earliest use found in Basil Hall (1788–1844), naval officer and author.

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更新时间:2024/12/25 0:43:19