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aromatic compounds     
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  芳香族化合物
     Nano-scale Ru/SiO_2 Catalyst Applied in Hydrogenation of Aromatic Compounds
     纳米Ru/SiO_2催化剂在芳香族化合物加氢反应中的应用
短句来源
     A total of 60 constituents were detected,among them,41 compounds identified accounting for 94.200% of the total. Esters are the most abundant which was up to 57.755%,and hydrocarbons was 11.300%. Aldehydes and aromatic compounds was 16.168% and 8.077%,respectively.
     利用GC-MS分析仪对精油进行了分析,检测出60种成分,解析了占精油94.200%的41种成分,其中,酯类化合物57.755%,烷烃类化合物11.300%,醛类化合物16.168%,芳香族化合物8.077%。
短句来源
     In order to study the direct iodination of aromatic compounds selectively, using active aromatic amine as material under soft condition, 2, 6-diethyl-3-iodoaniline was sythesized. The yield is over 95 %and its structure is elucidated by 1H-NMR and 13C-NMR.
     为研究芳香族化合物的选择性碘化,以活泼芳胺为原料,在温和条件下,直接碘化合成2,6-二乙基-3-碘苯胺,产率95%以上.其结构由1H-NMR和13C一NMR确证.
短句来源
     The thermodynamic parameters as dissolving enthalpy △H,dissolving entropy △S and free energy △G for aromatic compounds of different structures on the fixed liquids calixarene crown ether silicone(MC[4]C5PSO)and calixarene tetrabenzyl ether silicone(C[4]TBEPSO)were separated and determined.
     分离测得了不同结构芳香族化合物在杯芳冠醚聚硅氧烷 (M- C[4]C- 5 PSO)和杯芳烃四苄基醚聚硅氧烷 (C[4]TBE- PSO)固定液上的热力学参数——溶解焓△ H、溶解熵△ S和自由能△ G;
短句来源
     Study on Regioselective Nitration of Aromatic Compounds on Solid Acid Catalysts
     固体酸催化剂上芳香族化合物区域选择性硝化反应研究
短句来源
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  芳香化合物
     Polychlorinated biphenyls (PCBs) fall into the category of halogenated aromatic compounds (HACs) or dioxin-like compounds (DLCs) and are highly lipophilic environmental contaminants.
     多氯联苯(polychlorinated biphenyls,PCBs)属于卤代芳香化合物(halogenated aromatic compounds,HACs)或二噁英类化合物(dioxin-like compounds,DLCs)的范畴。
短句来源
     Study on Combined Photocatalysis and Ozone Degradation of Aromatic Compounds
     芳香化合物的光催化-臭氧联用降解研究
短句来源
     Determination of Aromatic Compounds by Factor Analysis──Spectrophotometry
     芳香化合物的因子分析光度法同时测定
短句来源
     ADSORPTION FROM SOLUTION Ⅻ. THERMODYNAMIC STUDY OF ADSORPTION OF AROMATIC COMPOUNDS FROM WATER ONTO ACTIVATED CARBON
     自溶液中的吸附——Ⅻ.活性炭自水中吸附芳香化合物的热力学研究
短句来源
     The Progress in the STM Studies on Aromatic Compounds
     芳香化合物STM研究的进展
短句来源
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  芳烃化合物
     Study of The C-13 NMR Spectra of The Aromatic Compounds Based on PPP-SCF-MO Method
     芳烃化合物C-13NMR谱解析的PPP-SCF-MO研究
短句来源
     The Selective Intermolecular Force among the Aromatic Compounds
     芳烃化合物的选择性分子间引力
短句来源
     The absorption spectra of aromatic compounds naphthalene、biphenyl、anthracene、α-naphthol and β-naphthol has been measured by terahertz time-domai n spectroscopy over the frequency range from 0.1 to 2.2THz at room temperature.
     利用太赫兹时域光谱技术室温下对芳烃化合物萘、联苯、蒽、α 萘酚和 β 萘酚在 3~ 73cm-1(0 1~ 2 2THz)频谱范围内进行了光谱测量。
短句来源
     Viscosity Prediction of Biodegraded Oils on Aromatic Compounds
     利用芳烃化合物预测生物降解原油的粘度
短句来源
     THE CALCULATION OF FLUORESCENCE AND STRUCTURE IN EXCITED STATES OF AROMATIC COMPOUNDS BY MOLECULAR ORBITAL (PPP-CI) METHOD
     分子轨道法(PPP-CI)计算芳烃化合物的荧光光谱及激发态结构
短句来源
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  芳香物质
     Some aromatic compounds,their precursor and two relative enzymes were investigated on cucumber fruits developed 3 days,6 days,9 days,12 days,15 days;
     对发育3、6、9、12和15d的黄瓜果实的芳香物质芳香物质形成前体和主要酶类进行了测定,并且对各时期果实的含糖量、果皮硬度两个因素进行了分析。
短句来源
     Changes of Some Aromatic Compounds and Relative Factors during Fruit Development of Cucumber
     黄瓜果实发育过程中特征芳香物质及相关因素的变化
短句来源
     Changes of Aromatic Compounds Content and Effect of Nitrogen on Flavor Quality of Cucumber Friuts at Different Season
     不同季节黄瓜果实芳香物质含量变化及氮对风味品质的影响
短句来源
     The purpose of this paper is to clarify the variations of aromatic compounds of cucumber fruits during development and the effect of nitrogen on flavor quality.
     为了探讨果实发育过程中风味品质的变化规律及N素水平对日光温室黄瓜风味品质的影响机理,以新泰密刺为试材,研究了日光温室黄瓜不同时期果实发育速度、果实发育过程中主要芳香物质、脂肪酸含量及脂氧合酶(LOX)活性的变化。
短句来源
     In the shaking-green process, the moisture was decreased slowly and favorable to the formation of aromatic compounds from the primary oxidative products of catechins and free amino acids. In the sametime, a part of water soluble sugar acted with amino acids and formed the flower-fragrant substances with good-looking colour under the thermal action in the drying process, thus forming the aroma characterized by flower-fragrant broken black tea.
     在摇青阶段,由于水分降低缓慢,利于儿茶素初级氧化产物与游离氨基酸生成芳香物质:同时,干燥过程的热作用,使部分水溶性糖与氨基酸作用,生成色泽悦目并具花香的物质或其它香气物质,形成了花香红碎茶独特的香气。

 

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  aromatic compounds
We found that lignins from solid parts of grapes are partially decomposed during alcoholic fermentation, which releases low-molecular-weight aromatic compounds into the medium.
      
Data on bioconversion of aromatic compounds with various types of substitution in die ring were used for this purpose.
      
The addition of tangerine pomace (TP), a substrate enriched with aromatic compounds, to the culture medium caused an increase in the rate of biosynthesis of laccase and ligninase to 862 ncat/ ml and 557 units per ml, respectively.
      
Aromatic compounds such as p-xylidine and veratric aldehyde increased the laccase activity of C.
      
The review deals with transformation of natural and synthetic aromatic compounds by fungi (causative agents of white rot, brown rot, and soft rot, as well as soil filamentous fungi).
      
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Some kinds of Chinese coal have been hydrogenated in the autoclave for catalyst studies.Under the condition:temperature 450°,initial hydrogen pres- sure 100 atm./20°,and reaction time 1 hr.,the conversion of Shenli coal of Fushun reaches or exceeds 95%,when SnC_2O_4+NH_4Cl,SnCl_2,tin ore+NH_4Cl, ZnCl_2,(NH_4)_2MoO_4,FeS,or sulfurized bogiron ore is used as catalyst. A time-saving“microautoclave”technique is developed and is recommended for the preliminary study of coal hydrogenation. In the range of temperature...

Some kinds of Chinese coal have been hydrogenated in the autoclave for catalyst studies.Under the condition:temperature 450°,initial hydrogen pres- sure 100 atm./20°,and reaction time 1 hr.,the conversion of Shenli coal of Fushun reaches or exceeds 95%,when SnC_2O_4+NH_4Cl,SnCl_2,tin ore+NH_4Cl, ZnCl_2,(NH_4)_2MoO_4,FeS,or sulfurized bogiron ore is used as catalyst. A time-saving“microautoclave”technique is developed and is recommended for the preliminary study of coal hydrogenation. In the range of temperature 400—450℃ and initial hydrogen pressure 50—100 arm.,the order of hydrogenation activity of the three series of catalysts studied is:tin>molybdenum>iron;for the conversion of asphaltene,the activity of tinhalide catalyst is also the highest. As shown in this investigation,the Shenli coal of Fushun is well amenable to hydrogenation,and its use in the production of aromatic compounds and liquid fuel is very prospective.

以不同煤种在高压釜内进行了加氢催化剂的选择试验.在450°、100大气压/20°(H_2,初压)、恒温1小时的条件下,用 SnC_2O_4+NH_4Cl,SnCl_2,锡矿+NH_4Cl,ZnCl_2,钼酸铵,FeS,废无机脱硫剂或黄土(加硫)等作为催化剂,抚顺胜利煤的转化率可达到或超过95%.在试验过程中还建立了效率较高的小管试验,可用来代替普通大管作煤加氢的初步评价工作.以小管试验为基础,改变操作条件,在400—450°与50—100大气压初氢压的范围内,锡系催化剂适应能力最强,钼次之,铁最差.对沥青质的加氢转化来讲,锡的活性也是最高的.

The UV absorption spectra of the mixtures of aromatic compounds—benzene,toluene,isobutylbenzene,p-xylene,xylene(mixture),mesitylene,aniline,benzaldehyde,and anthracene with molecular oxygen have been investigated.It was found that in agree-

作者研究有机物-氧混合体系的电子光谱。在所测量的九种芳香族化合物中除苯甲醛和蒽外,均观察到以分子氧作为电子受主的电子转移光谱。并证明这些光谱的频率与电子施主的电离势之间有直线关系。分析芳香族化合物β-,p-和α-谱带的激发态和最低三重态的能量~βE_1,~pE_1,~αE_1和 (?)E_1与这些有机物的电离势 I 之间的关系。找出有机物本征电子光谱和其电子转移光谱也有联系:1.除蒽和苯甲醛外,所有已观察到的有机物与分子氧的电子转移光谱的频率(?),包括 Evans 和 Tsubomura 等的结果在内,均低于有机物本征吸收的频率。2.说明蒽-氧和苯甲醛-氧的(?)未被测出的原因是由于蒽和苯甲醛的本征吸收谱带所掩盖。3.只有多环芳烃的 ~pE_1-I 和~3E_1-I 有直线关系。从而得出其~pE_1,~3E_1,(?)和 I 之间相互的线性关系。4.从苯甲醛和蒽的本征吸收以及蒽-氧电子转移络合物位能曲线,讨论其光致自动氧化的初级反应。

The reaction of diphenylacetylene with σ-triphenyl-chromium tetrahydrofuranate in tetrahydrofuran gave a series of aromatic compounds: 1,2,3,4-tetraphenylnaphthalene, hexaphenylbenzene, 9,10-diphenylphenanthrene, tetraphenylethylene, and p-terphenyl, among which only the former two have been reported by Zeiss et al. The same reaction carried out in ether gave the same products.

二苯基乙炔在四氢呋喃溶液中与σ-三苯基铬作用,除获得Zeiss等报告的产物1,2,3,4-四苯基蓁和六苯基苯外,还分离得9,10-二苯基菲、四苯基乙烯和对三联苯。在乙醚溶液中进行的相同反应也得上述各种产物。由于9,10-二苯基菲的获得,我们对Zeiss机理提供有力的补充的说明:即σ-三苯基铬四氢呋喃絡合物中的四氢呋喃配位体逐步被二苯基乙炔置换,而与铬结合的苯基参加缩合反应,因而形成菲、萘、苯衍生物。至于四苯基乙烯的生成机理,目前尚难肯定。σ-三(邻甲苯基)铬四氢呋喃絡合物与二苯基乙炔作用生成1,2-二苯基-1,2-二(邻甲苯基)乙烯。

 
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