protoplanet

protoplanet

美 [proʊtə'plænɪt] 　英 [prəʊtə'plænɪt]

• n.〔天〕原行星
• 网络原始行星

词形变化

复数：protoplanets  

英汉解释

n.

1. 〔天〕原行星

英英解释

n.	1. a theoretical mass of gas in the clouds of gas and dust around a star that is believed to develop into a planet

例句

Gas clusters that push the protoplanet outward can sometimes exert stronger forces than those that push inward.

气体星团推动原行星向外的推力可能在某些时候强于那些使它向内的推力。

Vesta is what scientists term a protoplanet - a body that never acquired the proportions of "grown-up" planets such as Earth and Mars.

灶神星属于被科学家们称作“原始行星”的一类星体，这种星体不具备“成熟”行星——比如地球和火星——的尺寸。