Its wheels and gears create a portable orrery of the sky that predicted star and planet locations as well as lunar and solar eclipses.
其轮盘和齿轮制造出一种可携带的太阳系天体仪，可以预测恒星和行星的位置，也能预测月食和日食。
2
With continuing advances, it may be possible to launch robotic missions to nearby star systems within two or three decades after the commissioning of the first lunar base.
在月球基地之后的二十到三十年内，太空探索将继续进展，也许会运载机器人到邻近的星系去执行探测使命。
3
The higher powers are mainly used for lunar, planetary, and binary star observations.