planetesimal

基本解释

According to the planetesimal theory of the origin of planet and the data of cosmochemistry, geochemistry and geology geochemistry, and geophysics of the Earth's interior;
对星子学说、地球的多阶段堆积模型和地球化学不均一性以及它们的相互关系进行了论述，从行星演化的角度阐述地球不均一成因的理论框架。
Thus, if the majority of the small amounts of water in a planetesimal reaches a planetary surface as its magma solidifies, this would be enough to form oceans that are similar to Earth's.
因此一个行星表面大部分的微量水元素到达岩浆的表面就凝固了，这将足够形成像地球上这样的海洋。
When the planetary migration occurs under the tidally interaction of a planet and a disk of gas or a planetesimal, the orbital parameters, especially, semi-major axis, of this planet will be altered.
行星迁移发生在行星与气体或星子的星盘之间进行潮汐相互作用时，这造成行星轨道参数，特别是半主轴的变更。