“导向取代”的概念、定义、翻译、参考文献-科学参考

单词	导向取代
释义	导向取代 Encyclopedia 理学导向取代释 directing substitution导向取代在化学合成反应中，在反应体系中引入一种或多种无机或有机添加剂（结构导向剂），或者通过外界实验条件的改变从而发生特定位置的取代，得到所需的特定结构目标产物的过程。
随便看	elementary kernel elementary Kleinian group elementary length elementary logic elementary mathematics elementary matrix elementary matrix operation elementary measure elementary method elementary method of integration elementary mode analysis，EMA elementary net system elementary notion elementary number elementary number theory Elementary on Astronomy elementary operation elementary operations on matrices elementary operator elementary partical physics elementary particle elementary particle physics elementary particles elementary particle scattering elementary particle theory

科学参考收录了854744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。