| 单词 | quadrant |
| 释义 | quadrant /'kwodrant; 'kwadrant/ n 1 fourth part of a circle or its circumference. 象限; 圆或其圆周的四分之一。 → the illus at circle. 参寿 circle 之插图。 2 graduated strip of meta!, etc shaped like a quarter-circle, for use in measuring angles (of altitude) in astronomy and navigation. 象限仪; 四分仪。 |
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