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单词 plane scale
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plane scale
plane scale n. Obsolete a scale or ruler marked with lines representing chords, rhumb lines, sines, tangents, secants, etc., used in mathematical operations, esp. in navigation.
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the world > relative properties > number > mathematical instruments > [noun] > trigonometrical instruments
scale of equal parts1630
plain scale1659
plane scale1709
trigonometer1767
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > ruler used in calculations
plain scale1659
plane scale1709
1709 G. Vaux tr. J. C. Sturm Mathesis Juvenilis I. 130 A small Rule or Scale divided into equal Parts, which may be taken for Miles, Rods, Feet, Inches, &c. which is commonly called a Plane Scale.
1828 O. Gregory Hutton's Course Math. (ed. 9) II. 58 Of plane scales, there should be several sizes, as a chain in 1 inch,..a chain in ½ an inch, &c.
extracted from planeadj.
plane (†plain) scale
diagonal scale, Gunter's scale, Marquois scale: see the qualifying words. plane (plain) scale: see plane adj. Compounds 1.extracted from scalen.3
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