| 单词 | 退化二次曲面 degenerate quadric; degenerate surface of the second order; improper quadric; | 
| 释义 | 见:退化: 退化二次曲面 degenerate quadric; degenerate surface of the second order; improper quadric; | 
| 随便看 | 
 | 
国际大辞典收录了835600条英语、德语、日语等多语种在线翻译词条,基本涵盖了全部常用单词及词组的翻译及用法,是外语学习的有利工具。