artificial spacecraft造句

例句与造句

1. This agrees with the observed orbits of planets, comets, and artificial spacecraft to a reasonably good approximation, although if a comet passes close to the Sun, then it is also influenced by other forces such as the solar wind and radiation pressure, which modify the orbit and cause the comet to eject material into space.
2. It's difficult to find artificial spacecraft in a sentence. 用artificial spacecraft造句挺难的