“polar distance”的概念、定义、翻译、参考文献-科学参考

单词	polar distance
释义	polar distance [`pō·lǝr `dis·tǝns] ^ASTRONOMY Angular distance from a celestial pole; the arc of an hour circle between a celestial pole, usually the elevated pole, and a point on the celestial sphere, measured from the celestial pole through 180°.
随便看	Triangulum Triangulum Australe Triangulum Nebula Triassic triatomic Triatominae triaxial pinch triaxon triazole tribasic calcium phosphate tribasic zinc phosphate tribo- triboelectricity triboelectric series triboelectrification tribology triboluminescence tribometer tribromoethanol tribromoethyl alcohol tributary tributary area concept tributary glacier tributary station tributary stream

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