原行星 meaning in Chinese
protoplanetary disk
Examples
- The protoplanets were huge affairs .
原行星是一个巨大的天体。 - In the meantime the protoplanet cores were proceeding to consolidate .
在此期间，原行星的核开始凝成。 - The peaceful evolution of the protoplanets reached a more dramatic phase .
平静的原行星进化到富有戏剧性的状态。 - While the protoplanets were coming into existence the sun was still dark .
当原行星刚刚形成时，太阳还是暗淡无光的。 - These were the protoplanets from which the planets of the present developed .
这些就是原行星，现在的行星正是从它们演化而来的。