1)  celestial equator
天球赤道
2)  degree
天球
1.
According to this model of sphere and to the Conversion standard oflchi = l degree, the author has gained the geometric meaning of the records of "zhang , chi, cu.
古人裸眼目视观测天象时亦有天球模型,通过天球模型的建立,按1尺=1度的换算标准,可以确定“丈、尺、寸”天象记录的几何意义,并对“大如X”形式的记录进行尺度或亮度的量化,最后将两种记录统一在一个系统中。
3)  Celestial coordinate system
天球坐标
4)  celestial sphere instrument
天球仪
1.
In this paper,Qi Yanhuai,an astronomer in the Qing dynasty,and his vertical direct east and west sun dials,transit instrument and celestial sphere instrument were studied in detail.
介绍了清代天文学家齐彦槐的生平及其制作的面东西日晷、中星仪和天球仪等天文仪器 ,进一步探讨了这些天文仪器的制作原理和使用方法 。
5)  the celestial sphere and the rivermap
天球河图
6)  celestial coordinate system
天球坐标系
1.
The celestial coordinate system is a coordinate system for mapping position in the sky which based on the rotation and revolution around the Sun of the planets.
行星的自转和绕太阳公转是建立天球坐标系的事实依据。
2.
In this article,“celestial coordinate system”, the difficult point in the teaching of the Conspectus of the Earth, is analysed and studied and three key points are proposed: finding the joint point, establishing an coordinate system mode that can be accepted easily and giving out the basic dots & great circle system very distinctly.
本文主要对《地球概论》中的教学难点“天球坐标系” ,结合教学实践与有关教材进行深入的分析和研究 ,提出突破这一教学难点的 3个关键 :找准衔接点 ;建立易于掌握的坐标系模式 ;清楚地给出基本点和大圆的系统。
参考词条
补充资料：粉彩九桃天球瓶(清乾隆)

 

高５１.５厘米，故宫旧物，非常珍贵。乾隆时期的瓷业，从技术层面上看，是达到了前所未有的“集大成”高度。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。