短語(yǔ)詞組短語(yǔ)gravitational heavenly body 引潮天體heavenly body question 天體問(wèn)題heavenly body theory 天體理論latitude of a heavenly body 天體黃緯altitude of the heavenly body 天體高度hour angle of heavenly body 天體時(shí)角 返回 heavenly body