orbits造句
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.
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。
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.
The Earth
orbits in an ellipse.
地球轨道呈椭圆形。
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 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.
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.
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.
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
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.