| 单词 | baseline |
| 释义 | baseline /bays"luyn'/, n. Also, base line. 1. Baseball. the area between bases within which a base runner must keep when running from one base to another. 2. Tennis. the line at each end of a tennis court, parallel to the net, that marks the in-bounds limit of play. 3. (in perspective drawing) a horizontal line in the immediate foreground formed by the intersection of the ground plane and the picture plane. 4. a basic standard or level; guideline: to establish a baseline for future studies. 5. a specific value or values that can serve as a comparison or control. 6. Typography. the imaginary line on which the bottoms of primary letters align. 7. Survey. See under triangulation (def. 1). 8. Electronics. a horizontal or vertical line formed on the face of a cathode-ray tube by the sweep of the scanning dot. 9. Naval Archit. a line on the body plan or sheer plan of a hull, representing a horizontal reference plane for vertical dimensions. adj. 10. basic or essential. [1740-50; BASE1 + LINE1] |
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