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单词 parallel rulers
释义

parallel rulers


plural noun

a pair of straightedges connected by two pivoted crosspieces of equal length so as to be parallel at all times, used for various navigational purposes, especially for transferring the bearing of a plotted course to a compass rose.

Origin of parallel rulers

First recorded in 1695–1705

Words nearby parallel rulers

parallel postulate, parallel processing, parallel projection, parallel resonance, parallel ruler, parallel rulers, parallel sailing, parallel top, parallel turn, parallel universe, parallel-veined
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for parallel rulers

  • Hence we find him first making brass scales, parallel-rulers and quadrants.

    James Watt|Andrew Carnegie
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更新时间:2025/1/11 7:24:26