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甲烷类
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  methanes
     STUDIES ON CYCLIZATION OF BIS(1-CARBONYLAMINO -3-ARQYLTHIOUREA)METHANES COMPOUNDS
     双(1-甲酰胺基-3-芳酰基硫脲)甲烷类化合物环化反应的研究
短句来源
     In this paper, a series of new bis(3-yl-4-aroyl-1,2,4-triazoline-5-thione) methanes (II) have been synthesized by the cyclization of bis (1-carbonylamino-3-aroylthiourea)methanes (I) under the catalysis of 4 mol/L K2CO3 4 mol/L solution in good yields (50.2%-92.4%).
     研究了双(1-甲酰胺基-3-芳酰基硫脲)甲烷(简称为I)在碱催化条件下的环化反应. 结果表明,Ⅰ类化合物均被环化为双(3-基-4-芳酰基-1,2,4-三唑啉-5-硫酮)甲烷类化合物(简称为Ⅱ).
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  “甲烷类”译为未确定词的双语例句
     Kinetics Studies on Quenching of CCl_2CA~1B_1 and a~3B_1 by O_2, CF_4 CF_2Cl_2 , CH_3NO_2 , CH_2Br_2 and Chloromethane
     CCl_2(A~1B_1)被O_2及取代甲烷类分子猝灭的动力学研究
短句来源
     Synthesis of 1-Methyl-ethoxy-1-alkylthiomethane
     1-甲基-1-乙氧基-1-烷硫基甲烷类化合物的合成研究
短句来源
     SYNTHESIS OF BIS (1-CARBONYL-3-AROYLTHIOUREA) METHANE COMPOUNDS
     双(1-酰基-3-芳酰氨基硫脲)甲烷类化合物的合成
短句来源
     Bisbenzimidazolylmethanes have high potation for inhibition of the hepatitis C virus (HCV) NS3/NS4A serine protease.
     双苯并咪唑甲烷类化合物为高活性的非肽类HCV NS3/NS4A酶抑制剂。
短句来源
     A new perfume,1 propoxy 1 furfurylmercaptomethane, was prepared with chloromethyl propyl ether and furfurylmercaptan.
     以氯甲基丙基醚和糠硫醇为原料 ,经一步化学反应合成了一种新的 1 烷基 1 烷氧基 1 烷硫基甲烷类香料化合物 :1 丙氧基 1 糠硫基甲烷。
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  相似匹配句对
     C.
     C
短句来源
     Ion beam deposition of diamond like carbon by usinggaseous hydrocarbon source
     甲烷源离子束沉积金刚石研究
短句来源
     (2)acidic ter-phenyl methane dyestuff series;
     ( 2 )酸性三甲烷染料显色剂 ;
短句来源
     Category B contains six types.
     B是推理;
短句来源
     An Ogticai Fiber Based Telemetering System for Methane
     甲烷光纤遥测系统
短句来源
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  methanes
Effects of arylthio-and arylseleno(methoxy)methanes on acid corrosion of CT3 steel
      
The effects of various arylthio-and arylseleno(methoxy)methanes on corrosion of CT3 steel in sulfuric and hydrochloric acid solutions were studied by gravimetric and voltammetric methods.
      
In contrast to monosubstituted methanes, in di- and trisubstituted methanes there is no correlation between the ΔE2 component and the 1J(13CH) constants.
      
The same technique of singling out the solvation component due to intermolecular hydrogen bonds from pKa(H2O) was used in studying the acid-base equilibria for substituted methanes in aqueous solution.
      
Forming in the course of the reaction fluorophenylmethylene-2-naphthyl-(or 6-quinolyl)amines, arylbis(cyclohexane-1,3-dion-2-yl)methanes, and 2-(fluorophenylmethylene)-1,3-indandiones were isolated.
      
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After the sources and harms of trihalomethanes especially the chloroform in potable water are summarized, the efficiency and mechanism of removing chloroform by two biological activated carbon processes, i.e. (A) filtration and adsorption by granular activated carbon and (B) ozonation and filtration and adsorption by granular activated carbon, are described. It has been found that during the initial operation period chloroform can be effectively removed by both types of activated carbon columns, X-11 type carbon...

After the sources and harms of trihalomethanes especially the chloroform in potable water are summarized, the efficiency and mechanism of removing chloroform by two biological activated carbon processes, i.e. (A) filtration and adsorption by granular activated carbon and (B) ozonation and filtration and adsorption by granular activated carbon, are described. It has been found that during the initial operation period chloroform can be effectively removed by both types of activated carbon columns, X-11 type carbon from Beijing is even more effective than ZJ-15 carbon from Tai Yuan. The mechanism is explained by Lundelius rule and biological activities in carbon columns. The 100% chloroform breakthrough bed volumes for both processes A and B are 4000-5000 and 12000-15000 respectively. The reason for better efficiency of removing chloroform by process B is discussed.Chloroform contents of effluents from carbon columns of both processes are higher than that of the untreated water. It is assumed that organic substances undergo microbic degradations in carbon columns under anaerobic conditions to become various kinds of carboxylic acids first and then to methane. Finally, chloroform is formed by reaction of methane and free chlorine present in water,

本文简述了饮用水中三卤甲烷类特别是氯仿的米源和危害;阐述了粒状活性炭过滤吸附和臭氧化—粒状活性炭过滤吸附两种流程的生物活性炭法去除氯仿的效能与机理。试验发现,各活性炭柱在运行初期,均有较高的去除率,其中北京X—11型炭的吸附性能高于太原ZJ—15型炭,并从Lundelius规则和炭层中的生物活性的角度进行了解释。活性炭流程的出水氯仿穿透点为4000~5000床体积;臭氧—活性炭流程为12000~15000床体积。并对臭氧活性炭流程除氯仿效能较好的原因进行了探讨。两种流程的炭柱出水中氯仿比原水中的氯仿浓度高。作者认为这是炭层中的微生物在厌氧条件下将有机物先降解为各种羧酸最后降解为甲烷,而甲烷与水中的游离氯发生自由基取代反应形成氯仿所致。

An investigation. has been made on the chelating behaviour of the rare earth elements-triphenyl methane reagents-cation surfactants system in an alka lescent solution. The molar absorption coefficient of the chelates RE-xylenol orange-CPB(CPC, CTMAB)reduces, and the chelates RE-CAS-CPB(CPC, CTMAB) increases with the increase of atomic number Z. The chemical compositions of the ternary chelates has been determined, they are RER_3(CPB)_3 andRER_3(CPB)_2, respectively.

文章较系统的研究了在弱碱性溶液中稀土和某些三苯甲烷类试剂、阳离子表面活性剂所形成的三元络合物。稀土和二甲酚橙一类试剂、阳离子表面活性剂的络合物的摩尔吸光系数随稀土原子序数的增加而减小,测得的络合物的组成为RER_3(CPB)_3,稀土和铬天青S一类试剂、阳离子表面活性剂的络合物的摩尔吸光系数随稀土原子序数的增加而增大,络合物的组成为RER_3(CPB)_2。

Triadimefon is a known potent inhibitor of ergosterol biosynthesis in yeasts and fungi and belongs to the phenoxy-triazolyl-methane.We design and synthesis anilinyl triazolyl-methane.The new compounds were identified hy IR,MS and 1 HNMR.In the agar diffusion test, three new compounds are active against Fusarium oxyspoyum, Fusarium moniliforme, Pellicularia etc.The relationship between the chemical structure and antifungal activity of these compounds was studied using CNDO method.

三唑酮是苯氧基——三唑基——甲烷类的化合物,它是酵母和真菌的麦角甾醇生物合成的一种强抑制剂。我们设计并合成了它们的生物电子等排体——苯胺——三唑——甲烷。这些化合物培养皿试验表明:三个新化合物对棉花枯萎病菌、棉花红腐病菌、水稻纹枯病菌等有抑菌活性,用CNDO法分析了这些化合物结构与抑菌活性的关系。

 
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