| 单词 | protoplanetary disk |
| 释义 | protoplanetary disk[ prō′tə-plăn′ĭ-tĕr′ē ] A rotating disk of dust and gas that surrounds the core of a developing solar system. It may eventually develop into orbiting celestial bodies such as planets and asteroids. See more at planetesimal. Words nearby protoplanetary diskprotopectin, protophilic, protophloem, Protopic, protoplanet, protoplanetary disk, protoplasm, protoplasmic astrocyte, protoplast, protopodite, protopope The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
| 随便看 |
英语词典包含192737条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。