单词 | Kuiper belt |
释义 | Kuiper belt(ˈkaɪpə) noun a region of the solar system beyond the orbit of Neptune, some 30–1000 astronomical units from the sun, containing up to one thousand million icy planetesimals or comet nuclei See also Oort Word origin C20: named after G. P. Kuiper (1905–73), Dutch American astronomer, who proposed it in 1951 |
随便看 |
英语词典包含233703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。