asteroids的例句大全

Many asteroids are weakly bound piles of rubble, held together by their own minute gravitational attraction.

大多数的小行星都是由碎石组成,而这些碎石靠着自身之间微弱的万有引力结合在一起.

How can the comets , asteroids and meteorites , which fascinate us , kill us?

随着太阳的不断扩张, 太阳系中其它的星球将发生怎样的变化?

En route to Jupiter, the craft took the first detailed images of two asteroids.

在到木星的途中, 宇宙飞船首度传回两小行星清晰的照片.

The only remaining viable alternative is the heat produced when asteroids collide with one another.

剩下唯一的选择,是小行星彼此撞击产生的热.

But there are also thousands of asteroids whose orbits put them a collision course with Earth.

但是也有成千上万颗小行星的轨道把它们引上与地球碰撞的方向.