单词 | d-type asteroids |
释义 | D-type asteroidsD-type asteroidsA class of asteroid whose members are rare in the main belt but become increasingly dominant in the regions beyond the 2:1 Jovian resonance at 3.2 AU (see Kirkwood gaps). The observed surface coloring may be due to carbon-rich kerogenlike material. |
随便看 |
|
英语词典包含2567994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。