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单词 traverse-scale
释义

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traverse-scale
traverse-scale n. (also travis-scale) Obsolete rare a type of slide rule used in navigation to calculate longitude and latitude.
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > board or scale on which course is indicated
traverse board1597
traverse1627
traverse-scale1669
1669 S. Sturmy Mariners Mag. ii. v. 64 The Travis-Scale... An Instrument the most easie, ready, and necessary..for the working of Travises, and correcting your dead Reckoning.
1669 S. Sturmy Mariners Mag. iv. iii. 153 By the Traverse-Scale, Extend the Compasses in the Line of Numbers from 10 or 100, to 57 Leagues.
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更新时间:2024/12/25 21:00:12