基本解释[天文学]cep 天球历书极天球历书极英汉例句双语例句In this paper, the definition of the Celestial Ephemeris Pole (CEP) in the 1980 IAU Theory of Nutation is discussed.本文讨论了1980 IAU章动理论中关于天球历书极的定义。专业释义天文学cep 天球历书极天球历书极