| 单词 | plumb rule |
| 释义 | plumb rule a device for determining perpendicularity, consisting of a narrow board with a plumb line and bob suspended from an upper edge. [1350-1400; ME plomreule] |
| 随便看 |
|
英语词典包含168451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。