| 单词 | conic section |
| 释义 | conic section (once / 29329 pages) n WORD FAMILY conic section: conic sections USAGE EXAMPLESÐ ÷ ordinate, right line applied at right angles to the axis of any conic section, and bounded by the curve. Webster, Noah, Webster's Unabridged Dictionary(2012) He is at liberty to deny and ridi- cule the rule of three, conic sections, and even the multiplication table. Ingersoll, Robert Green, The Works of Robert G. Ingersoll, V...(2012) Excluding the general group itself, every one of these leaves either a point, a line, or a conic section unaltered. Various, Encyclopaedia Britannica, 11th Edit...(2011) n (geometry) a curve generated by the intersection of a plane and a circular cone Syn|Hypo|Hyper conic ellipse, oval a closed plane curve resulting from the intersection of a circular cone and a plane cutting completely through it parabolaa plane curve formed by the intersection of a right circular cone and a plane parallel to an element of the curve hyperbolaan open curve formed by a plane that cuts the base of a right circular cone circleellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point plane figure, two-dimensional figure a two-dimensional shape |
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