celestial sphere

英 [səˈlestiəl sfɪə(r)]

美 [səˈlestʃl sfɪr]

天球

英英释义

noun

• the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
  Synonym:sphereempyreanfirmamentheavensvault of heavenwelkin

双语例句

• One of two points of intersection of the Earth's axis and the celestial sphere.
  地轴延线与天球相交的两点之一。
• Analyzing the Difficulties in the Celestial Sphere's Coordinate System
  天球坐标系的难点解析
• Through the analysis of the origin of the Chi System, the author has also obtained that the semi-diameter of the celestial sphere is about 13 meters.
  通过对尺寸系统起源的分析，认为古人裸眼目视观测时的天球半径约为13米上下。
• A point in the heavens ( on the celestial sphere).
  天上的一个点（在天球上）。
• C++ software is used to classify tri-stars of the guide stars in celestial sphere and implement the method. It is concluded that the SOFM network can reflect the complicated information among star patterns better.
  应用C++软件编程，对全天导航星星表的星信息进行了星三角采样、分类，指出SOFM网络可以很好地提取、反映星表中的复杂信息。
• Intelligent Model of Astronomical Satellite Using GA for Scanning the Celestial Sphere
  天文卫星巡天扫描智能规划模型及仿真
• With 486 partitions, an equal partition method of celestial sphere without overlap is firstly presented to speed up guide star indexing.
  首先提出在直角坐标系下将天球球面均匀地分成486个分区的方法&内接正方体法，实现导航星的快速检索。
• A great circle on the celestial sphere that passes through both celestial poles.
  通过天体球两极与天体赤道成直角相切的大圈。
• D; ( 3) establishing theoretical relations between polar motion of rotational axis, polar motion and precession-nutation of either celestial sphere reference axis;
  建立了自转轴极移和任一天球参考轴极移和章动之间的理论关系；
• If you watch over the period of a day you will see that they move around the celestial sphere once in a period of 24 hours.
  如果你对着屏保看一天，上面的星体也将在24小时内围绕天球旋转一圈。