卫星

• No satellite of substantial size can exist close to its parent plant .
  体积较大的卫星没有一颗能靠近其母星。
• Planets, asteroids, and satellites shine only by reflected sunlight .
  行星、小行星和卫星都是靠反射太阳光而发光的。
• Satellite lifetimes in orbit range from a matter of days to hundreds of years .
  卫星在轨道上的寿命从几天到几百年不等。
• The landsats alone have given us more than a million images of earth .
  单是陆地卫星就为我们提供了超过一百万张的地球图象。
• Because titan is saturn's largest moon, it held special interest for us .
  由于土卫六是最大的卫星，因此我们对它特别感兴趣。
• For satellites circling the earth, the law of areas is also imperfect .
  对于环绕地球运动的卫星来说，面积定律也是不完善的。
• Every observer in a satellite program is in a way a pioneer of space travel .
  卫星计划的每一个观测者，都可以说是宇宙旅行的先锋。
• Up to the present day no bond exists between the earth and her satellite .
  直到现在为止，地球和它的卫星之间还没有建立任何直接联系。
• A signal-relay satellite would transmit information from the telescope to earth .
  望远镜接收到的信息将由转播信号的一颗卫星转播到地球上。
• Interpolation between satellite positions was initially carried out by dead-reckoning procedures .
  卫星定位值间的内插最初用的是推算航行法。