So a cloud of particles can continue being just that... a cloud.

於是这团粒子就会保持着......云气的形状。

In 1873 French scientist, Edouard Roche proposed that the Moon simply formed alongside the Earth out of essentially the same nebular cloud of particles and gasses.

1873年法国科学家爱德华·洛希提出月球只是在地球旁边形成的，本质上是由相同的粒子和气体的星云构成的。