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单词 rabatment
释义

rabatmentn.

Brit. /rəˈbatm(ə)nt/, U.S. /rəˈbætm(ə)nt/
Forms: 1800s rebatment, 1800s– rabatment, 1900s– rabattment, 1900s– rebatement (rare), 1900s– rebattement (rare).
Origin: Of multiple origins. Apparently partly formed within English, by derivation. Apparently partly a borrowing from French. Etymons: rabat v., -ment suffix; French rabattement.
Etymology: Apparently partly < rabat v. + -ment suffix, and partly < French rabattement (a1870 in this sense: see rebatement n.1). Compare rabatting n. at rabat v. Derivatives.
Geometry and Perspective.
The action of rabatting or rotating a plane, figure, etc.; the result of this.
ΘΚΠ
the world > relative properties > number > geometry > [noun] > action or process > rotation
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1874 S. J. P. Thearle Naval Archit. (new ed.) I. iv. 76 We are determining the distance from the axis of rabatment at which the point will be when the plane of the cant is parallel to the body plane.
1889 Ann. Math. 5 16 After the rebatment of β back into α the centre is found at O.
1949 N. L. Reece Newnes Building Geom. 206 A rebattement is the name given to the construction when a figure lying in an inclined plane is turned or ‘rebatted’ so as to lie in the horizontal plane.
1963 J. Griffin tr. C. Bouleau Painter's Secret Geom. ii. 43 Another way of constructing a picture, derived with equal naturalness from the rectangle, is ‘rabatment’, or rotation, of the short sides upon the long.
1971 Educ. Stud. Math. 3 405 Another approach is to draw the one circle as the circle in PP which stands on the two DP's. This circle includes also the rabattment of the eye position.
1989 Perspecta 25 231/2 The same representation connects, by rabattment of the half-plane, the orthographic ensemble of section plus elevation.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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