英语词汇directrix line of a parabola怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	directrix line of a parabola
释义	directrix line of a parabola— 准线 See also: directrix of a parabola— 定直线
随便看	personal efficiency personal effort personal electronic devices personal electronics personal elements personal email personal email address personal emergencies personal emergency personal empire personal employee information personal empowerment personal encounter personal endeavours personal engagement personal English personal enhancement personal enjoyment personal enrichment personal entertainment personal environment Personal Envoy personal equipment personal error personal estate

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

directrix line of a parabola—