网站首页 汉语 德语 英语
A device for converting a continuous beam of neutrons into a pulsed beam by passing it through a rotating slotted disc or cylinder.
1950s; earliest use found in Samuel Glasstone (b. 1897).
雅致网英汉双解词典包含236457条英汉翻译词条,涵盖了常用英语单词及词组短语的翻译及用法,是英语学习的必备工具。