“绝对必要”的概念、定义、翻译、参考文献-科学参考

单词	绝对必要
释义	绝对必要 imperative imperative
随便看	normal trajectory normal transformation normal transistor normal travel time curve normal tree normal trichromatic vision normal trichromatism normal trilinear coordinates normal twill normal type normal type of embryo sac normal-type wagon normal undercarriage normal unthreading normal uranium normal utility normal-valence oxide normal valency normal valley normal valuation normal value normal valve normal variable normal variation normal variety

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。