采用甲硫醇、呋喃硫醇、吡嗪、反-2，4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料，可以调配出香气逼真的炖牛肉香精。
Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor.
这一组中包括黄酮类化合物，二苯甲酮、一些香豆素、木质素、缩合单宁和芪。
The group includes flavonoids, benzophenones, some coumarins, lignans, condensed tannins, and stilbenes.
综述了烟草重要致香物圆柚酮的合成研究现状，主要讨论了圆柚酮合成的反应原理及一般合成方法。参考文献8篇。
The status of synthesis of nootkatone used as an important tobacco flavoring was reviewed with 8 references. Some reactions and general ways of synthesis were discussed.
方法：60例随机分为两组，治疗组30例应用香砂六君汤加恩丹西酮治疗，对照组单纯用恩丹西酮治疗30例作比较。
Method: 60 cases were randomly assigned to two groups, 30 cases in treatment group taken Xiangsha Liujun Decoction plus ondansetron, and 30 in control simply taken ondansetron as comparison.
结果表明：烈香杜鹃精油化学成分以高级脂肪酸酯、酮、芳香族化合物及芳香杂环化合物为主。
The results showed that the volatile constituents of Rhododendron athopogoides Maxim, mainly includes aliphatic acid and ester, aldehyde, ketone, aromatic and its heterocyclic compounds.
目的探讨氮酮、杜香萜烯两种渗透促进剂对复方骨质增生贴剂透皮渗透的影响。
RESULTS Both Azone and Lepaloine at different concentrations have the role of enhancing permeation.
为研究硫醇烯光固化组成物的反应机理，选用安息香双甲醚、安息香乙醚、安息香正丁醚、二苯甲酮和噻吨酮为光敏剂，用红外光谱法研究了硫醇烯的光化学反应动力学。
The kinetics of thiol-ene reaction is studied by Fourier Transform Infrared when benzoin dimethyl ether, benzoin ethyl ether, benzoin butyl ether, benzophenone and ITX were used as photosensitizer.
伞形科植物的成分主要有挥发油、香豆素、色原酮及其苷类。
Umbelliferae plants mainly contain essential oil, coumarin, chromone and glycoside.
采用甲硫醇、呋喃硫醇、吡嗪、反-2，4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料，可以调配出香气逼真的炖牛肉香精。
Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor. This flavor has natural and vivid pot-roast beef flavor.
采用甲硫醇、呋喃硫醇、吡嗪、反-2，4-壬二烯醛和呋喃酮等主要的牛肉香气成分香原料，可以调配出香气逼真的炖牛肉香精。
Methanethiol, furanthiol, pyrazine, trans, trans-2,4-nonadienal and furfuran ketone were used to develop beef flavor. This flavor has natural and vivid pot-roast beef flavor.
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