| 单词 | ruled surface |
| 释义 | > as lemmasruled surface ruled surface n. Geometry a surface swept out by a moving straight line. ΚΠ 1836 A. De Morgan Differential & Integral Calculus xv. 401 The ruled surface (or the surface réglée of the French writers) is made by a straight line which moves in any manner whatever, according to a regular law. 1902 Trans. Amer. Math. Soc. 3 60 All of these straight lines generated a ruled surface S which was never a developable surface. 2007 F. D. K. Ching Architecture (ed. 3) ii. 42/2 A ruled surface is generally easier to form and construct than a rotational or translational surface. < as lemmas |
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