“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	Health Service health service cost health service demand function health service informatization health serviceman health service market health service organization health service price health services research Health service statistics health service support Health service survey health service training health standard for aquatic animals health standards Health statistical methods Health statistical survey system Health Statistics Health statistics health statisticsin military health supervision and inspection Health Supervision and Management System health supervision for control and prevention of infectious diseases health supervision for drinking water health supervision of military training

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。