“angular distance”的概念、定义、翻译、参考文献-科学参考

单词	angular distance
释义	angular distance [`an·gyǝ·lǝr `dis·tǝns] ^MATHEMATICS 1. For two points, the angle between the lines from a point of observation to the points. 2. The angular difference between two directions, numerically equal to the angle between two lines extending in the given directions. 3. The arc of the great circle joining two points, expressed in angular units. ^PHYSICS The distance between two points, expressed in wavelengths at a specified frequency.
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