nebular hypothesis

• n. [天]星云假说

英英释义

Noun:

1. (cosmology) the theory that the solar system evolved from a hot gaseous nebula

例句

用作名词 (n.)

1. According to the nebular hypothesis, a cloud of interstellar dust and gas underwent gravitational contraction, eventually forming a solar nebula.
   根据星云假说，星际尘埃和气体的云块经历重力的收缩后，最后形成太阳星云。