crown-ether

基本解釋

• 冠醚

英漢例句

雙語例句

• The different hetero-substitution appeared to be crucial in the metal complexation of crown ether.
  顯然，冠醚的雜原子取代對其與金屬離子的絡合選擇性起了決定性的作用。
• This paper contains the following three part research work:Synethsis of crown ether-based ionic liquids.
  本論文主要包括以下三個部分的研究工作：冠醚型離子液體的合成。
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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.
  研究結果表明冠醚萃取中子活化法可較好地用于巖石和復雜體系中痕量錸的分離分析。

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詞組短語

短語

• Dibenzo -21-crown 7-Ether 二苯并
• Dicyclohexano -18-crown 6-Ether 順;二環(huán)己烷并
• 4 -Carboxybenzo-15-crown 5-Ether 碳酸苯并
• crown -ether polymer 高分子冠醚
• thia crown -ether 硫雜冠醚

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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

• crown-ether劍橋字典
• crown-ether柯林斯字典

專業(yè)釋義

化學

• 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論的ADF程序對超價碘烷·冠醚和正常價態(tài)碘分子·冠醚二聚體進行較為精確和系統(tǒng)的研究。