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(duì)其與金屬離子的絡(luò)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(gè)部分的研究工作：冠醚型離子液體的合成。
  lunwenfudao.com
• 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(jié)果表明冠醚萃取中子活化法可較好地用于巖石和復(fù)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(xué)

• 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?qū)Τ瑑r(jià)碘烷·冠醚和正常價(jià)態(tài)碘分子·冠醚二聚體進(jìn)行較為精確和系統(tǒng)的研究。