| 单词 | straight line |
| 释义 | straight line (once / 1317 pages) n WORD FAMILY straight line: straight lines USAGE EXAMPLESBroadcast localism drew a straight line between local journalism, local voices, and self-government. Slate(Dec 01, 2016) Jetliners, however, rarely travel in straight lines to their destination, but rather along more indirect routes determined by their flight plan. New York Times(Nov 30, 2016) "Nothing goes up in straight lines and people do like to take profits when big moves like this occur." Reuters(Nov 30, 2016) n a line traced by a point traveling in a constant direction; a line of zero curvature the shortest distance between two points is a straight line Ant|Hypo|Hyper curve, curved shape the trace of a point whose direction of motion changes perpendicular a straight line at right angles to another line asymptotea straight line that is the limiting value of a curve; can be considered as tangent at infinity tangenta straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point secanta straight line that intersects a curve at two or more points radiusa straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere) diametera straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface) chorda straight line connecting two points on a curve elementa straight line that generates a cylinder or cone bias, diagonala line or cut across a fabric that is not at right angles to a side of the fabric diagonal(geometry) a straight line connecting any two vertices of a polygon that are not adjacent vectora straight line segment whose length is magnitude and whose orientation in space is direction element of a conea straight line joining the apex and a point on the base element of a cylindera straight line running the length of the cylinder ray(mathematics) a straight line extending from a point line a length (straight or curved) without breadth or thickness; the trace of a moving point |
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