单词 | acorn tube |
释义 | acorn tubeRadio now historical noun A small high-frequency vacuum tube resembling an acorn in both size and shape. Origin1930s; earliest use found in Electronics. |
随便看 |
英语词典包含243303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。