英语词汇“optic square”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	optic square
释义	> as lemmas optic square † optic square n. Obsolete rare = optical square n. at optical adj. and n. Compounds. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for laying off lines at right angles optic square1809 optical square1853 1809 Farmer's Mag. 10 489 By means of the optic square..a right-lined figure of any size can be measured with the utmost accuracy. extracted from opticadj.n. < as lemmas
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> as lemmas