protoplanet / ˈproʊ toʊˌplæn ɪt /

🎓大学词汇原行星原地行星原生质体原初行星

protoplanet 的定义

n. 名词 noun

Astronomy.

  1. the collection of matter, in the process of condensation, from which a planet is formed.

更多protoplanet例句

  1. Then there are protoplanets, a planet that’s almost done forming.
  2. During the chaos of the Bombardment Epoch, water from asteroids and volatile elements from the protoplanet fall to the gravitational attraction of a young planet Earth.