花灯集英语字典

crown-ether

C 开头单词

基本解释

  • 冠醚

英汉例句

    双语例句

  • The different hetero-substitution appeared to be crucial in the metal complexation of crown ether.
    显然，冠醚的杂原子取代对其与金属离子的络合选择性起了决定性的作用。
  • This paper contains the following three part research work:Synethsis of crown ether-based ionic liquids.
    本论文主要包括以下三个部分的研究工作：冠醚型离子液体的合成。
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  • The results show that the crown ether extraction- neutron activation method can be satisfactorily applied to the separation and determination of trace rhenium in rock samples and complex systems.
    研究结果表明冠醚萃取中子活化法可较好地用于岩石和复杂体系中痕量铼的分离分析。

词组短语

    短语

  • Dibenzo -21-crown 7-Ether 二苯并
  • Dicyclohexano -18-crown 6-Ether 顺;二环己烷并
  • 4 -Carboxybenzo-15-crown 5-Ether 碳酸苯并
  • crown -ether polymer 高分子冠醚
  • thia crown -ether 硫杂冠醚

英英字典

    柯林斯英英字典

  • a type of cyclic ether consisting of a ring of carbon and oxygen atoms, with two or more carbon atoms between each oxygen atom

专业释义

    化学

  • 冠醚

    In this thesis, we use program ADF based on Density-Function theory to study the hypervalent-iodine-crown-ether and non-hypervalent-iodine-crown-ether dimmers exactly.
    本文主要采用基于密度泛函理论的ADF程序对超价碘烷·冠醚和正常价态碘分子·冠醚二聚体进行较为精确和系统的研究。