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
   second reaction 的翻译结果: 查询用时:0.007秒
图标索引 在分类学科中查询
所有学科
电力工业
更多类别查询

图标索引 历史查询
 

second reaction
相关语句
  “second reaction”译为未确定词的双语例句
     the reaction of adsorption is the second reaction kinetics equation: 1/ρ_R=0.01084t+0.49689;
     该吸附反应符合二级反应动力学方程:1/ρR=0.01084t+0.49689;
短句来源
     the second reaction is A 2 mechanism, fitting the Avrami kinetic equation I:[-ln(1- α )] 1/2 = kt ,and the rate controlling process of each reaction is random nucleation.
     第二个反应为 A2 机制 ,服从动力学方程 Avrami方程 I:[- ln(1 - α) ]1/2 =kt,速控步骤均为随机核化。
短句来源
     △H=-3.34 kcal· mol-1 , △Z=-6.57 kcal·moL-1, △S=-11.0 cal· mol-1·K-1 , for the second reaction.
     并求得了该反应的热力学函数△H,△Z和△S分别为~7.14kcal·mol~(-1)、-10.3kcal·mol~(-1)和10.6cal·mol~(-1)·K~(-1)。
短句来源
     Through secondary sulfidation and antichloration,controlling quantity of sodium sulfide to 0.70~0.72 mol/mol S2Cl2,quantity of isopropanol is 1.33 mol/mol S2Cl2,and reaction time is half an hour in the first sulfidation and antichloration,in the second reaction,the quantity of natrium sulfide is 0.24~0.34 mol/mol S2Cl2,and reaction time is 1~3 h.
     通过二次硫化脱氯反应,第1次硫化脱氯反应中,硫化钠加入量为0.70-0.72 mol/mol S2Cl2,异丙醇加入量为1.33 mol/mol S2Cl2,反应时间0.5 h; 第2次硫化脱氯反应硫化钠加入量为0.24-0.34 mol/mol S2Cl2,反应时间1-3 h。
短句来源
     second reaction at 110 ℃ for 8 h,the yield of p-aminoanisole was 96% with purity 99%,the yield of by-product sodium thiosulfate was 92% with purity 98%。
     第二步反应在110℃下回流8h,对氨基苯甲醚的收率为96%,纯度为99%,副产品硫代硫酸钠的收率为92%,纯度为98%。
短句来源
更多       
  相似匹配句对
     Second,
     二是对于?
短句来源
     Second, the s
     第二章:追寻一个普通读者的阅读过程,寻找对诗集的戏剧性的体验。
短句来源
     It is verified that the reaction follows second order.
     该合成反应的总反应级数为二级 ,且为双分子亲核取代反应。
短句来源
     Second,the automobile-house inter-reaction.
     第二、车房互动。
短句来源
     The reaction is exothermic.
     在低温区隧道效应对反应速率的贡献较大,反应为放热反应.
短句来源
查询“second reaction”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。
  second reaction
In all cases the first reaction enhanced the second reaction of which effectiveness factor sometimes exceeded one.
      
The effect of the first reaction on the second reaction was studied by varying the Thiele modulus, M-M constants and the relative rate of the film mass transfer as compared with that of the pore.
      
The intrinsic activation energies for the first and second reaction stages are 40 and 117 kJ-mol-1, respectively.
      
The second reaction stage occurs out of external gaseous influence and a net chemical control operates, both at low temperatures and for the lowest carbon content.
      
At 2∶1 aldehyde-monoethyl malonate molar ratio the second reaction goes almost exclusively (64-90% yield).
      
更多          


The morphology and structures of Solvay type β-TiCl3 and vvvvv-TiCl3 were investigated directly by electron microscope. From electron microscopy it is revealed that in the process of catalyst preparation the products of first and second reaction steps (TiCl3 (Ⅰ) arid TiCl3 (Ⅱ)) are aggregates of needle-shaped crystallites which were shown to be β-TiCl3 from electron diffraction pattern Similarly, products of third reaction step (TiCl3 (Ⅲ)) are shown to be aggregates of microcrystallites with a size...

The morphology and structures of Solvay type β-TiCl3 and vvvvv-TiCl3 were investigated directly by electron microscope. From electron microscopy it is revealed that in the process of catalyst preparation the products of first and second reaction steps (TiCl3 (Ⅰ) arid TiCl3 (Ⅱ)) are aggregates of needle-shaped crystallites which were shown to be β-TiCl3 from electron diffraction pattern Similarly, products of third reaction step (TiCl3 (Ⅲ)) are shown to be aggregates of microcrystallites with a size of - 100A and in the form of σ-TiCl3. The single crystal of σ-TiCl3 with rough edges was observed for the first time. Therefore, it is ascertained that transformation from β-TiCl3 to σ-TiCl3 took place in the third step. Moreover, the number of active center on the lateral faces of microcrystallites per gram of σ-TiCl3 was calculated and estimated to be 5 × 1020. It is very interesting that under the impingement of eleetron beam both transformation from β-TiCl3 to σ-TiCl3 and growth of σ-T'iCl3 microcrystallites were observed. Furthermore, it is proposed that during polymerization polypropylene chains would form around every β-TiCl3 mierocrystallite and therefore σ-TiCl3 microcrystallites would move apart from each other, thus they were actually observed as finely dispersed phase in the polymer mass.

用电子显微镜研究了索尔维型β-TiCl_3,δ-TiCl_3的形态和结构,证实在制备过程中发生了由β-TiCl_3转变为δ-TiCl_3的晶形转化过程,计算了1克索尔维型δ-TiCl_3所能形成的活性中心数目,并发现在电子束的轰击下,β-TiCl_3会转化为δ-TiCl_3,δ-TiCl_3微晶粒会长大,此外还用超高压电镜观察了聚丙烯颗粒,提出了对聚丙烯颗粒形成过程的看法。

It is well known that in the Purex process the gamma radiolysis of the extractant TBP is a disadvantage. In the literature [2] it is reported that diphenyl sulfoxide has two-fold protective effect to inhibit V-radiolysis of TBP. In this paper the binary system of TBP-(C6H5)2SO was selected and the synergic extraction of uranyl nitrate was studied. The formation of a synergic extracting complex UO2(NO3)2·TBP (C6H5)2SO has been confirmed by the usual slope method. The extraction mechanism of uranyl nitrate with...

It is well known that in the Purex process the gamma radiolysis of the extractant TBP is a disadvantage. In the literature [2] it is reported that diphenyl sulfoxide has two-fold protective effect to inhibit V-radiolysis of TBP. In this paper the binary system of TBP-(C6H5)2SO was selected and the synergic extraction of uranyl nitrate was studied. The formation of a synergic extracting complex UO2(NO3)2·TBP (C6H5)2SO has been confirmed by the usual slope method. The extraction mechanism of uranyl nitrate with TBP or (C6H5)2 SO has been investigated respectively. There are three kinds of equilibria in the system UO2(NO3)2-TBP-(C6H5)2SO.The equilibrium constants were determined and found to be Iogβ10 = 1.44, logβ20 = -0.214 and logβ12 =0.446. By determining the effect of temperature on the distribution ratio, △H, △G, and △S of the individual reactions were evaluated as follows: for the first reaction△H=-6.31 kcal·mol-1, △G295k= -1.95 kcal·mol-1, △S298k= -14.6 cal·mol-1·K-1; for the second reaction△H=-6.86 kcal·mol-1, △G295k= -0.27 kcal·mor-1, △S298k= -23.9 cal·mol-1·K-1.The radiation stability of the system TBP-(C6H5)2 SO has been studied. The G values determined show that diphenyl sulfoxide can inhibit the radiolysis of TBP. The values of the Hafnium number are nearly the same as the pure TBP system.

本文研究磷酸三丁酯(TBP)和二苯基亚砜[(C_6H_5)_2SO]苯溶液在硝酸介质中对UO_2~(2+)的协同萃取,发现 BB类中性络合协萃体系有弱协萃效应。实验确定协萃络合物组成为 UO_2(NO_3)_2·TBP·(C_6H_5)_2SO,并求得协萃平衡常数吃1gβ_(12)= 0.446。分别研究了 TBP和(C_6H_5)_2SO单独萃取UO_2(NO_3)_2的反应,求出萃合常数1gβ_(10)和1gβ_(20),通过温度对分配比影响的测定,求得各反应的△H及 298K时的△G°和△S°值。本文还研究了(C_6H_5)_2SO加入 TBP后体系的辐照稳定性,测定了TBP+(C_6H_5)_2SO 降解产物的Hf指数。

This paper reports the influence of two different feeding ways in preparation of segmented polyether urethane (SPEU) by a two-step method on dynamic mechanical properties of SPEU. Experimental results indicate that (1) when chemical composition and molar ratio of reactants were kept unchanged, the extent of microphase separation in SPEU was affected by the feeding ways. The extent of microphase separation of bulk SPEU polymer prepared by the first reaction feeding way, i.e. [PTMEG→DMI] ← Extender, is better...

This paper reports the influence of two different feeding ways in preparation of segmented polyether urethane (SPEU) by a two-step method on dynamic mechanical properties of SPEU. Experimental results indicate that (1) when chemical composition and molar ratio of reactants were kept unchanged, the extent of microphase separation in SPEU was affected by the feeding ways. The extent of microphase separation of bulk SPEU polymer prepared by the first reaction feeding way, i.e. [PTMEG→DMI] ← Extender, is better than that obtained by the second reaction feeding way, [PTMBG←MDI] ← Extender. (2) The effect of reaction feeding ways on dynamic mechanical properties of the SPEUS is more evident in 1,4-butanediol (EDO) extending samples. (3) The samples extended with 1,2-ethylenediamine have better phase separation that the samples extended with BDO.

本文研究了在溶液聚合两步法制备多嵌段聚醚聚氨酯(SPEU)过程中,两种不同的加料方式对SPEU动态力学性能的影响。实验结果表明:在反应物组成、配比相同条件下,采用先将聚醚溶液滴加入到4,4′-二苯基于烷二异氰酸酯(MDI)的溶液中,俟反应完成后再滴加入扩链剂的加料方式制得的SPEU,比采用由MDI溶液先向聚醚溶液中滴加,再加入扩链剂所制得的SPEU有较高的微相分离程度。

 
<< 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second reaction的内容
在知识搜索中查有关second reaction的内容
在数字搜索中查有关second reaction的内容
在概念知识元中查有关second reaction的内容
在学术趋势中查有关second reaction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