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 Earth orbits in an ellipse.地球轨道呈椭圆形。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....
边缘同态d按以下方式来定义.The boundary homorphism d is defined as follows.给出了两个常用格上序同态的结构定理.Two theorems about structures of order - homomorphisms on two Fuzzy lattices are given.给出了任意自同态像图都是收缩核的分裂图的结构.The split graph is given endom...
The newspaper seeks to be independent of political dogma.这份报纸力求不受政治信条影响.He never seeks any personal privileges.他从不搞特殊化.44-year-old woman seeks caring, honest male of similar age for friendship and fun. Genuine replies on...
Affix the blue airmail label and leave the rest to us.贴上蓝色的空邮标签，其余的事情交给我们。Complete the form and affix four tokens to its back.填完该表，在背面贴上4张凭券。Affix the stamp to the upper right corner of the envelope.把邮票贴在信封上的右上角....