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reaction route
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  反应路线
     pH response of nanosized MnO 2 prepared with solid state reaction route at room temperature
     由室温固相反应路线制备的纳米MnO_2的pH响应
短句来源
     Meanwhile, the rate constants ofrate-determining step and activation parameters were obtained at different temperatures,which provided basis for the mechanism and the reaction route design of the organicsynthesis.
     通过大量的研究,据所提反应机理,求得了不同反应温度下速控步的速率常数k及活化参数。 这为反应动力学的研究,有机合成机理和反应路线的设计提供了理论数据。
短句来源
     The reaction route for MC-FTC synthesis including the chemical structures of the related intermediates and the target product has been confirmed by IR, UV-Vis, NMR, MS and elemental analysis.
     报道了它的详细合成方法 ,给出了反应路线和产物及各个中间体的化学结构 ,并通过IR ,UV/Vis ,NMR ,MS和元素分析方法确证
短句来源
     The results showed that the direct synthesis of DEC from C2H5OH and CO2 is unfeasible thermodynamically. Thus, it is necessary to design other reaction route.
     结果表明由乙醇和CO2直接合成DEC的反应在热力学上是不可行的,需要设计其他反应路线
短句来源
     For this cause, two kinds of reaction route have been employed to introduce side-chain mesogenic units (MU) on the main-chain of PI, which are monomer-co-condensation route and macromolecular reaction route.
     围绕这一主题,确定了引入液晶基元侧链的两条路线:大分子反应路线和二胺单体路线。
短句来源
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  反应途径
     Based on the kinetic study of CO_2+H_2 reaction over CuO/ZnO/ZrO_2 catalyst underlower pressure,we studied the reaction route of methanol formation from CO_2+H_2.Through TPD—MSand the change of the activation energies,we studied the promotion of ZrO_2 on CuO/ZnO/ZrO_2 cata-lyst of methanol synthesis.
     本文在研究CuO/ZnO/ZrO_2催化剂上CO_2+H_2反应动力学的基础上,通过TPD-MS测试及表观活化能的测算,探讨了CO_2+H_2合成甲醇的反应途径以及第三组份ZrO_2对合成甲醇的促进作用。
短句来源
     the optimum CH4/O2 ratio is 10 ̄14; the optimum conversion of CH4 is 17% and the optimum formaldehyde yield is 12.1%. The reaction route to formaldehyde has also been proposed.
     得出最佳反应温度为650℃,最佳反应时间为0.5~0.7s,最佳CH4/O2比为10~14,最佳甲烷转化率为17%,最佳甲醛收率为12.1%,并提出了生成甲醛的反应途径
短句来源
     Further energy variation calculations along different reaction route were performed at the QCISD(T)/6 31G(d) level.
     并用QCISD(T) / 6 31G(d)计算了各反应途径中的能量变化 .
短句来源
     When methanol was added into the reaction system, the reaction route of mercaptan converted into hydrogen sulfide was changed, and methylthiol and dimethylsulfid were found in the products.
     当反应体系中加入甲醇后,改变了硫醇裂解生成H2S的反应途径,产物中出现甲硫醇和甲硫醚;
短句来源
     At the same time,through the thermodynamic discussion for the new synthetic reaction,in which the reaction route is changed by addition of the third substance,a general conclusion was obtained that the subroutine nesting of a coupling reaction is an effective method to increase the yield of DMC synthesis from carbon dioxide and methanol.
     同时,通过对在反应体系中加入第三种物质改变碳酸二甲酯合成反应途径的反应热力学分析,提出了寻找新型耦合剂来改变合成反应热力学的新思路。
短句来源
  “reaction route”译为未确定词的双语例句
     At first, dielectric ceramics Ba_4iNb_3O_(12) and Ba_3LaM_3O_(12)(M=Nb;Ta) hexagonal perovskite-related structures were prepared by the conventional solid-state reaction route. The crystal structure of new compound Ba_3LaTa_3O_(12) was determined through Rietveld X-ray powder diffraction method using Fullprof-Suite program.
     首先采用固相法合成了Ba_4LiNb_3O_(12)和Ba_3LaM_3O_(12)(M=Nb,Ta)纯相,采用Fullprof-Suite程序对新化合物Ba_3LaTa_3O_(12)进行了X射线粉末衍射Rietveld晶体结构精修。
短句来源
     Firstly, Ba_(5-x)La_xTi_xTa_(4-x)O_(15)(x=1~3)ceramics were prepared by high temperature solid-state reaction route.
     首先,采用高温固相反应法合成了Ba_(5-x)La_xTi_xTa_(4-x)O_(15)(x=1~3)系列陶瓷。
短句来源
     New dielectric ceramics Ba-nTi_(n-5)Nb_4O_(3n)(n=6, 7, 8) with cation-deficient hexagonal perovskite-related structures were prepared in Ba_5Nb_4O_(15)-BaTiO_3 system by the conventional solid-state reaction route.
     在BaO—La_2O_3—TiO_2—Nb_2O_5体系中设计、合成与制备了A_6B_5O_(18)型系列新化合物Ba_(6-n)La_nTi_(1+n)Nb_(4-n)O_(18)(n=1,2,3)及其陶瓷。
短句来源
     Red phosphors (Ca1-xSrx)TiO3:0.002Pr3+ (x=0-0.6) were prepared by solid state reaction route and their properties were investigated by photoluminescence (PL) spectra and XRD, respectively.
     利用高温固相反应法,制备了不同Sr/Ca比的(Ca1-xSrx)TiO3:0.002Pr3+(x=0-0.6)红色发光材料.
短句来源
     BaTi_ 1-x Sn_xO_3 (0.15≤x≤0.30)ceramics were synthesized by a conventional solid reaction route.
     用固相反应法制备了BaTi1-xSnxO3(0.15≤x≤0.30)系铁电陶瓷。
短句来源
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  reaction route
The influence of the reaction route for the incorporation of 5-sulfoisophthalate monosodium salt into the alkyd resin on the properties of the resin and coatings obtained from this alkyd resin was studied.
      
On the other hand, the major reaction route on the high Cu-content catalyst (Cu/ZnO=80/20) remained as methanol-formaldehyde reaction even under the high CO pressure.
      
The major reaction route on the high ZnO-contcnt catalyst (Cu/ZnO=30/70) was found to be the methanol-formaldehyde reaction, and changed to the carbonylation reaction with the increase ol CO partial pressure.
      
The reaction route depends on the reaction conditions, the nature of the substituent at the carbonyl group, and the number of fluorine atoms in the polyfluoroalkyl radical.
      
Electrocatalytic hydrogenation of citral is the predominant reaction route at Pt and Cu electrodes.
      
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The"differential pulse-chromatographic method"was used to investigate CO+H_2,CO+H_2O, and CO+H_2O+H_2 reactions on a nickel based catalyst prepared in our laboratory. When strictly adjusting the injection time of CO,H_2 and H_2O, the yield of CH_4 is also changed.According to the plots of CH_4 yield-△t obtained in CO+H_2O+H_2 reaction, it is suggested that there are four kinds of surface carbon with different reaction activities. One of them has fairly high activity but short lifetime-60 s...

The"differential pulse-chromatographic method"was used to investigate CO+H_2,CO+H_2O, and CO+H_2O+H_2 reactions on a nickel based catalyst prepared in our laboratory. When strictly adjusting the injection time of CO,H_2 and H_2O, the yield of CH_4 is also changed.According to the plots of CH_4 yield-△t obtained in CO+H_2O+H_2 reaction, it is suggested that there are four kinds of surface carbon with different reaction activities. One of them has fairly high activity but short lifetime-60 s at 400℃ and 270 s at 350℃. The CH_4 yield is the highest when different raw gases pass the catalyst simultaneously, as in a flow reaction system. So it appearst hat the active surface carbon plays an important role in the flow reaction system. When the injection amount of H_2 or H_2O is varied, the CH_4 yield is also varied. This indicates that hydrogen has major effect on CH_4 formation. It seems that CH_4 can be formed via reaction routes other than surface carbon.The differential pulse-chromatographic method is proven to be useful for investigating transient processes to obtain reaction mechanism and other important imformation.

在400℃、常压下,用普通的微型脉冲反应系统研究反应CO+H_2、CO+H_2O、CO+H_2O+H_2在自制Ni基催化剂KM-01上的反应规律。严格控制不同原料气的进样时间差△t,所得产物CH_4的产率不同。着重分析了用上述方法对反应CO+H_2O+H_2进行测定所得到的CH_4(产率)—△t图形。分析和推测有四种对H_2O和H_2具有不同反应活性的表面碳。其中一种对H_2O和H_2均有较高活性,但其寿命很短,在400℃时寿命约为60s,350℃时约为270s。经测定,各种原料气同时通过催化剂床层时CH_4产率最高,这一点是对流动反应体系的最好模拟,故可认为活泼表面碳在流动体系中起重要作用。在同时进样的条件下,改变H_2或H_2O的进样量,则CH_4产率发生变化,证明H_2对生成CH_4起主要作用;并可推测,在流动体系中,上述反应除通过表面碳机理可生成CH_4外,同时存在其他反应途径。用差动脉冲色谱法可提供反应机理及其变化规律的重要信息,特别是对研究反应的暂态过程、指导生产实践有一定意义。欲使此方法能适用某些于具体反应,也须满足一定条件。

Geometrical conditions were the first time suggested and analyzed in study of reaction mechanism. By assuming: (1) SAF (dynamic)=SAF (static) for reaction substrates, (2) gaps between reaction substrates, Which are normally hard and unpenetrate, keep almost non-negative during the reaction process, (3) activation energy for bond migration around the unit sphere surface is considerably lower than that needed in the bond breakage, a dynamic cone packing model approach was thus designed...

Geometrical conditions were the first time suggested and analyzed in study of reaction mechanism. By assuming: (1) SAF (dynamic)=SAF (static) for reaction substrates, (2) gaps between reaction substrates, Which are normally hard and unpenetrate, keep almost non-negative during the reaction process, (3) activation energy for bond migration around the unit sphere surface is considerably lower than that needed in the bond breakage, a dynamic cone packing model approach was thus designed which describes quantitatively the relative positions and gaps between each ligands during the reaction process. The model can also be used to calculate the maximum empty space for incoming ligands and for reaction intermediate. Reaction routes which leads to large negative gaps between inert ligands simply imply high reaction barriers and they are thus unfavourable. Lewis base association and dissociation, metal-carbon σ bond thermolysis and its CO insertion reaction was briefly discussed using U(C_5H_5)_3X (X=NCS~-, Cl~-and R~-) as examples.

本文首次提出了化学反应过程中几何可能性的定量研究。在下列条件下:(1)反应过程中,惰性配位体的键长,立体角系数等参数保持不变;(2)惰性配位体的压缩性很小;(3)在不压缩其它配位体的条件下,某一配位体在配位球面漂移所需的活化能低于这一配位体所形成的化学键断裂时所需的相应能量。我们提出动态堆积模型。以此来模拟反应过程中各个配位体间的相对位置和运动、配位体之间间隙的大小与受压缩的程度,并计算在反应中间过程中能够容纳新的配位体的最大空缺。考虑到使惰性配位体压缩将产生很大的空间势垒,以UCp_3X为例说明了Lewis碱的配合与解离,金属-碳σ键的热分解以及一氧化碳插入反应的可能性。

The reaction route associated with the polarographic catalytic wave of Co(Ⅰ)in ethylene-diamine-nitrite solutions proposed by Li Nanqiang et al(reactions A or B in the Chinese text)was simplified and treated as E_(ir) C_r E_(ir) process(reactions C or C). The system of differential equations involved is too complex to solve by using ordinary analytical methods. The Feldberg's digital simulation procedure was used to simulate the aforementioned system and the results were compared with the experimental...

The reaction route associated with the polarographic catalytic wave of Co(Ⅰ)in ethylene-diamine-nitrite solutions proposed by Li Nanqiang et al(reactions A or B in the Chinese text)was simplified and treated as E_(ir) C_r E_(ir) process(reactions C or C). The system of differential equations involved is too complex to solve by using ordinary analytical methods. The Feldberg's digital simulation procedure was used to simulate the aforementioned system and the results were compared with the experimental data observed. The discussion of simulated results provided a deeper insight into the nature of the processes associated with the elec-trode reactions.

文献提出了乙二胺-亚硝酸盐溶液中钴的极谱催化波反应机理,经简化可处理为EirCrEir机理。由于此体系涉及的偏微分方程组较复杂,按常规方法难于求得解析解。本文用Feldberg数字模拟方法对此体系进行了计算机模拟,并将模拟结果与实验观测进行比较,以期加深了解该电极反应涉及的实际过程的性质。

 
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