助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   正常沸点 的翻译结果: 查询用时:0.031秒
图标索引 在分类学科中查询
所有学科
化学
有机化工
无机化工
更多类别查询

图标索引 历史查询
 

正常沸点
相关语句
  normal boiling point
     the normal boiling point of water is 372. 4K, vaporization heat 42.93kJ/mol. Compared with documented values, the relative errors are respectively 0.03% and -0.07% .
     水正常沸点为372. 4K,水的平均汽化热为42.93kJ/mol,其与文献值的相对误差分别为0.03%、-0.07%.
短句来源
     The normal boiling point was predicted as Tb = 225.69K.
     文中还给出了一个新的正常沸点推算值T_b=225.69K.
短句来源
     From the relation between vaporization heat(or normal boiling point) and carbon number,the correlation between vaporization heat and normal boiling point was theoretically deduced,and a simple but valid equation was fitted:Hυ=23.234×BP~(1.21256)+1502.13.Applied to hundreds of non-polar organics,that equation produces fairly good results.
     通过对正烷烃蒸发热、正常沸点与碳数关系的研究,理论推导出蒸发热与正常沸点之间的关系,并拟合得一简单适用的公式:Hυ=23.234×BP1.21256+1502.13。 应用于上百种常见非极性有机物,误差较小。
短句来源
     In the leading basic research of molecular thermodynamics new theory 10: a theoretical equation of the normal boiling point for hydrocarbons and carboxylic acids
     分子热力学前沿基础研究领域中的新理论10:分子间力相对值的研究与纯质正常沸点理论方程
短句来源
     The data required in the method are: liquid density, Z_(RA)and vaporization enthalpy at normal boiling point.
     本方法所需数据为:液体密度、Z_(RA)值及正常沸点下蒸发焓。
短句来源
更多       
  the normal boiling point
     the normal boiling point of water is 372. 4K, vaporization heat 42.93kJ/mol. Compared with documented values, the relative errors are respectively 0.03% and -0.07% .
     水正常沸点为372. 4K,水的平均汽化热为42.93kJ/mol,其与文献值的相对误差分别为0.03%、-0.07%.
短句来源
     The normal boiling point was predicted as Tb = 225.69K.
     文中还给出了一个新的正常沸点推算值T_b=225.69K.
短句来源
     In the leading basic research of molecular thermodynamics new theory 10: a theoretical equation of the normal boiling point for hydrocarbons and carboxylic acids
     分子热力学前沿基础研究领域中的新理论10:分子间力相对值的研究与纯质正常沸点理论方程
短句来源
     The pressure measurement and control system in PVT measurement apparatuswas improved. The vapor pressure of CF_3I was measured with temperature rangingfrom below the normal boiling point to the critical point, and a vapor pressure equationof CF_3I was developed, then the normal boiling point and Pitzer factor of CF_3I weredetermined.
     改进了PVT实验装置的压力测量系统,测量了从低于正常沸点温度到临界温度的CF_3I饱和蒸气压,建立了高精度的饱和蒸气压方程,确定了CF_3I的正常沸点和偏心因子;
短句来源
     Based on the model of the continuous change of the numerical value of carbon atoms in the series of paraffin,a new empirical equation is derived as follows,which can be used to predict the normal boiling point of paraffin homologen. T b=aln(N+b)+c a,b and c stand for constans,N stands for paraffin carbon atom number.
     以烷烃同系列碳原子数值连续变化为模型 ,提出了一个新的预测烷烃同系物正常沸点的经验公式 :Tb =aln(N +b) +ca、b、c均为常数 ,N为烷烃碳原子数。
短句来源
更多       
  “正常沸点”译为未确定词的双语例句
     Y=A ·M+B·M/(C+t b )is usedas an empirical rule to correlate the heat of vaporization of the n ormol hydrocarbon etc,23kinds of homologs with its molecular weight and its n ormol boiling point in this paper.
     本文用Y=A·M+B·M/(C+tb)作为经验规则,关联了正烷烃等23种同系物的蒸发热与其相对分子质量和正常沸点
短句来源
     Calculation of Vaporization Heat of Pure Substances at Non-Normal Boiling Point
     非正常沸点下纯物质汽化潜热的计算
短句来源
     Three corresponding vapor pressure equations for HFC-143a, HFC-227ea and isobutene were developed on the basis of present measurements and available data. And two vapor pressure equations were proposed for HFC-236fa and HFC-245fa based on the present measurements,respectively. Then the normal boiling points and Pitzer factors of HFC-227ea, HFC-236fa, HFC-245fa and isobutane, were determined.
     根据目前已有的实验数据和本文的测量结果分别提出HFC-143a、HFC-227ea、HFC-236fa、HFC-245fa和异丁烷的饱和蒸气压方程,确定了其正常沸点和偏心因子。
短句来源
     Enthalpy vaporization of 104 organic compounds were estimated and compared with experimental data by the simulating estimation software and the total average error is just 0.864%.
     利用该软件还对104种有机物在正常沸点下的蒸发焓进行了估算,并与实验数据进行了比较,总平均误差为0.864%。
短句来源
     No experimental vapor pressure data or directly related properties such as the boiling point and critical pressure are needed for the prediction.
     不需要饱和蒸汽压或诸如正常沸点,临界压力等与饱和蒸气压直接有关的流体性质,用本文方法即可预测低、高温区间的饱和蒸汽压和逸度值
短句来源
更多       
查询“正常沸点”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  normal boiling point
It is shown for the example of 40 substances that the normal boiling point can be used for approximately describing the entire boiling curve from the triple to critical point.
      
The equations of state and the thermodynamic properties of inert gases in the interval from the normal boiling point to 1300°k a
      
True values of the thermal conductivity are calculated for neon, argon, krypton, and xenon over the temperature range from the normal boiling point to 6000°K at atmospheric pressure.
      
This method also allows an accurate determination of the normal boiling point temperature of a substance.
      
By boiling a cryogenic liquid under low pressure one can attain a temperature lower than the normal boiling point.
      
更多          
  the normal boiling point
It is shown for the example of 40 substances that the normal boiling point can be used for approximately describing the entire boiling curve from the triple to critical point.
      
The equations of state and the thermodynamic properties of inert gases in the interval from the normal boiling point to 1300°k a
      
True values of the thermal conductivity are calculated for neon, argon, krypton, and xenon over the temperature range from the normal boiling point to 6000°K at atmospheric pressure.
      
This method also allows an accurate determination of the normal boiling point temperature of a substance.
      
By boiling a cryogenic liquid under low pressure one can attain a temperature lower than the normal boiling point.
      
更多          


The isobaric vapor-liquid equilibrium data at 760mm Hg of two ternary systems, ethyl acetate-benzene-toluene and carbon tetrachloride-ethyl acetate-benzene, are determined by a modified Colburn equilibrium still. The composition of ethyl acetate-benzene-toluene ternary system is determined from two properties, refractive index (nD20) and normal boiling point, while the composition of carbon tetrachloride-ethyl acetate-benzene ternary system is determined from refractive index (nD20) and density (d425). The experimental...

The isobaric vapor-liquid equilibrium data at 760mm Hg of two ternary systems, ethyl acetate-benzene-toluene and carbon tetrachloride-ethyl acetate-benzene, are determined by a modified Colburn equilibrium still. The composition of ethyl acetate-benzene-toluene ternary system is determined from two properties, refractive index (nD20) and normal boiling point, while the composition of carbon tetrachloride-ethyl acetate-benzene ternary system is determined from refractive index (nD20) and density (d425). The experimental equilibrium data of two ternary systems are correlated by the equation obtained from copolymerization in the field of polymer chemistry with characteristic constants merely related with the corresponding pure components. The results of both two ternary systems are fairly satisfactory.

本文用改进的Colburn汽液平衡釜测定了在760mm汞柱压力下,乙酸乙酯-苯-甲苯和四氯化碳-乙酸乙酯-苯两组三元体系的汽液平衡数据.乙酸乙酯-苯-甲苯三元体系的分析方法采用折光指数(n_D~(20))和正常沸点两种三元物性数据相结合的物理化学分析法,四氯化碳-乙酸乙酯-苯三元体系的组成采用折光指数(n_D~(20))和密度(d_4~(25)两种物性数据相结合的方法.将所测定的两组平衡数据与纯组分的参数有关的关联式计算所得结果进行对比,获得了满意的结果.

Substituting the three correlations for predicting T_c,P_c and V_c proposed by Nokay(l959),Benko(l959)and Viswanath(1968), respectively, into the equation for critical compressibility factor Z_c,Z_c=P_cV_c/RT_c,leads to the following correlation, Z_c=(0.259+2.6189 T_b~(0.3784))/(RD~(0.2985)(MA)~(0.5)) where T_b,D, M and A stand for the normal boiling point, density(20℃),molecular weight and number of atoms in one molecule of a certain hydrocarbon, respectively,and R stands for the gas constant. After using the...

Substituting the three correlations for predicting T_c,P_c and V_c proposed by Nokay(l959),Benko(l959)and Viswanath(1968), respectively, into the equation for critical compressibility factor Z_c,Z_c=P_cV_c/RT_c,leads to the following correlation, Z_c=(0.259+2.6189 T_b~(0.3784))/(RD~(0.2985)(MA)~(0.5)) where T_b,D, M and A stand for the normal boiling point, density(20℃),molecular weight and number of atoms in one molecule of a certain hydrocarbon, respectively,and R stands for the gas constant. After using the experimental values of the critical compressibility factors of 170 hydrocarbons and the method of least square regression,the following correlation is obtained. Z_c=0.1831+0.4512 (T_b~(0.2784))/(D~(0.2985)(MA)~(0.5))-O.4347[(T_b~(0.2784))/D~(0.2985)(MA)~(0.5)]~2 Values of Z_c of 170 hydrocarbons are estimated by the proposed correlation and the group additive method of Lydersen. These values were compared with their corresponding experimental data, showing that both overall absolute average deviation and the population standard deviation for the proposed method are mailer than those for Lydersen's method.

根据独立推算Pc、Tc和Vc的三个关联式,代入Z c=PcVc/RTc式中,及170个烃化合物的Z c的实验值数据,用最小二乘法电算回归得到下列推算烃类Z c的新的关联式Zc=0.1831+0.4512X-0.4347X~2 To.3784 式中:?? Tb—正常沸点温度(K); ρ——密度(20℃下,克/毫升); M——分子量; N——分子中总的原子数。用上式对170个烃化合物的Zc值进行了计算,并与Lydersen的基团贡献法作了对比。结果表明,本法的平均误差和标准误差都较Lydersen法为小。

In the article, it is pointed out that there is approximately linear relation between the critical temperature Tc of metal elements and their normal boiling Tb : Tc =521(K) +1.747 Tb . The critical temperature Tc is caculated for 71 kinds of metal elements, the results obtained are almost agreement with the experimental data.

在文献[4]中,我们曾给出了金属元素的正常熔点沸点和临界点之间的关系。本文进一步指出金属元素的临界温度与正常沸点之间,近似地遵从线性关系:T_c=A+BT_b;计算了71种金属元素的临界温度,其结果与实验数据或一些文献中给出的数据基本一致。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关正常沸点的内容
在知识搜索中查有关正常沸点的内容
在数字搜索中查有关正常沸点的内容
在概念知识元中查有关正常沸点的内容
在学术趋势中查有关正常沸点的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社