单词盒子

heterocyclic ring

H 开头单词

基本解释

  • 杂环

同根派生

     

英汉例句

    双语例句

  • The attachment of a group to a central metallic agent such as iron with two valences to form a heterocyclic ring.
    一种基与中心金属离子（如二价铁离子）结合，形成杂环。
    www.infopetro.com.cn
  • An organic coordination (complexing ) compound in which the metal ion is bound to atoms of nonmetals, e. g. nitrogen, carbon, or oxygen, to form a heterocyclic ring having coordinate covalent bonds.
    一种配位（络合）化合物，其中的金属离子与氮、碳或氧等非金属原子结合生成有配位共价键的杂环。
    www.infopetro.com.cn
  • The results show that the pyridine heterocyclic ring comes into splitting decomposition at 770 ℃;
    结果表明：吡啶杂环在770℃时开始裂解；

词组短语

    短语

  • heterocyclic -ring base 杂环碱
  • heterocyclic nitrogen ring 氮杂环
  • heterocyclic fused ring 稠杂环
  • oxygen heterocyclic ring 含氧杂环;翻译
  • nitrogen heterocyclic ring compound 含氮杂环化合物

专业释义

    化学

  • 杂环

    Hydantoin is one of five-membered heterocyclic ring compounds and its derivatives are used widely in the fields of medicine, pesticide, printing, resin and organic synthesis . The synthesis and application of some of hydantoin derivatives were studied in this paper.
    乙内酰脲属于一种五元杂环化合物。

    农业科学

  • 杂环

    The C4 contained heterocyclic ring of podophyllotoxin derivatives can get higher antifeedant activity than podophyllotoxin .
    2.鬼臼毒素4位引入杂环可以得到比母体化合物活性更高的化合物。

    能源科学技术

  • 杂环环