耀久九英英词典

substituent

S 开头单词

基本解释

  • n.取代

同根派生

     

英汉例句

    用作名词 (n.)

  • The substituent effects of ethoxy groupswere studied on the chemical composition and properties of plasma polymers.
    研究了乙氧取代基对聚合物化学组成和性能的影响。
  • The fluorescence intensity of porphyrin also relates to the substituent positions on the phenyl groups.
    此外，荧光强度还与卟啉的苯环上取代基的取代位置有关。