| 单词 | grid |
| 释义 | grid /grid/, n. 1. a grating of crossed bars; gridiron. 2. Elect. a. a metallic framework employed in a storage cell or battery for conducting the electric current and supporting the active material. b. a system of electrical distribution serving a large area, esp. by means of high-tension lines. 3. Electronics. an electrode in a vacuum tube, usually consisting of parallel wires, a coil of wire, or a screen, for controlling the flow of electrons between the other electrodes. 4. Survey. a basic system of reference lines for a region, consisting of straight lines intersecting at right angles. 5. a network of horizontal and perpendicular lines, uniformly spaced, for locating points on a map, chart, or aerial photograph by means of a system of coordinates. 6. Archit. a rectangular system of coordinates used in locating the principal elements of a plan. 7. grillage. 8. Football. gridiron (def. 1). [1830-40; short for GRIDIRON] |
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