“meta directing group”的概念、定义、翻译、参考文献-科学参考

单词	meta directing group
释义	meta directing group Encyclopedia 理学间位定位基释 meta directing group间位定位基含有取代基的苯衍生物在进行芳环上的亲电取代反应时，能够引导新进入的取代基位置主要在原有取代基的间位的定位基。 Chemistry ＞有机化学＞物理有机化学＞释义 meta directing group间位定位基
随便看	negative polarity machining negative polynomial distribution negative-positive photographic system negative pressure negative pressure injection negative pressure method for deposit negative-pressure pulverizer with intermediate storage bunker negative pressure region negative pressure suction appliance negative priming effect negative probability negative proposition negative punishment negative quadratic differential negative real axis negative real number negative recurrent state negative refraction negative refraction index materials negative-refraction-index materials negative refractive index negative regression negative reinforcement negative relation negative resistance

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。