orbits的例句（orbits在句子中的用法）

• The man-made satellite orbits the earth every 48 hours. 那颗人造卫星每48小时绕地球轨道运行一周。
• As a companion star orbits its primary , it alternately approaches and recedes from the Earth. 当伴星围绕着主星运转时, 它交替地朝着地球或背离地球运转.
• The orbits of such faint asteroids are not yet known. 但是对于这样暗的小行星的轨道,迄今尚未弄清.
• They knew each other by sight, but their orbits did not touch. 他们见面认识, 但各自的生活圈子互不搭界.
• The man - made satellite orbits the earth every 48 hours. 那颗人造卫星每48小时绕地球轨道运行一周.
• Stellar passings can perturb the orbits of comets. 行星的运行会使彗星的轨道发生扰动.
• The orbits of planets in the once popular geocentric Ptolemaic system are epitrochoids. 曾经盛行的托勒密地心说体系里的行星轨道就是外旋轮线.
• Other enumeration problems lead us to the study of orbits of permutation groups. 其它的计数问题引导我们去研究置换群的轨道.
• This classification is the analogy of our previous picture of stable orbits. 这种区分类似于前面的稳定轨道图形.
• Mars and Earth have orbits which change with time... 火星与地球的运行轨道随着时间而变化。
• The Earth orbits in an ellipse. 地球轨道呈椭圆形。