heterocyclic ring
英
美
网络 杂环
英英释义
noun
- a ring of atoms of more than one kind
双语例句
- Study on the Synthesis of Nitric Heterocyclic Ring Compound and Its Derivatives
含氮六元杂环类化合物合成研究 - Syntheses and Properties of Rare Earth Elements with Tiron and Nitrogen Heterocyclic Ring
稀土与钛铁试剂，含氮杂环三元配合物的制备和性质 - Structute of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants was identi fied by mass spectrography, nuclear magnetic resonance spectra, infrared spectra and etc.
用质谱法、核磁共振波谱法、红外光谱法等，确定了未知氮杂环季铵盐型阳离子表面活性剂的结构。 - Oxazoline, a five-membered heterocyclic ring containing both N and O coordinated atoms, is an excellent class among nitrogen-containing chiral ligands.
其中，同时含有N和O的五元杂环的恶唑啉配体是比较优秀的一类含氮手性配体。 - Nitrogen heterocyclic ring has good biological activities and important application. The derivatives of triazoles attracted more and more attention for there excellent wide range of biological activities.
含氮杂环衍生物是一类具有良好生物活性和重要应用价值的化合物，其中三唑类杂环化合物由于具有广泛的生物活性而备受人们重视。 - Structural identification of nitrogen heterocyclic ring quaternary ammonium salt cationic surfactants
氮杂环季铵盐型阳离子表面活性剂的结构鉴定 - Systhesis of some systemic fungicides containing nitrogen heterocyclic ring
含氮杂环类内吸杀菌剂的合成 - Nitrogen-containing compounds are abundant in nature, and nitrogen heterocyclic ring exists widely in some bioactive products and medicinal compounds.
含氮化合物广泛存在于自然界中，一些具有生物活性的天然产物、药物等往往含有氮杂环结构。 - Triazine is a type of heterocyclic organic compounds, it is important to ring nitrogen organic chemical raw materials.
是一种三嗪类含氮杂环有机化合物，重要的氮杂环有机化工原料。 - This paper designed and synthesized several chiral nitrogen-containing heterocyclic four-membered ring amide of chiral catalysts, studies its application in catalytic asymmetric Aldol reaction, and acquired better catalytic effect. 1.
本文设计合成了几种手性氮杂四元环酰胺类手性催化剂，研究了其在催化不对称Aldol反应中的应用，取得了较好的催化效果。