| 单词 | reactant |
| 释义 | reactant [英 [ri??kt?nt] 美 [ri??kt?nt] ] reactant的意思、解释 reactant 基本解释 名词反应物 reactant什么意思 reactant 网络解释 1. 反应物：时至今日,随著新技术的出现,ATP已经是市场上很寻常的成品(每克售价不到新台币二百元)当两个化学反应循序发生,后面反应把前面反应的生成物(Product)用作反应物(Reactant)时,这两个反应之间就有了一个「共同中间物」. 2. 反应物; 反应剂：RBC生物转盘 | reactant反应物;反应剂 | reaction time反应时间 3. 成分：reactant resin 活性树脂 | reactant 成分 | reactatron 低噪声微波放大器 4. 反应剂：reactant gas 反应性气体 | reactant 反应剂 | reaction distance 反应距离 reactant 双语例句 1. This paper described a theoretical analysis of effect of reactant absorption for its initial state (t=t0) of properly posed problem in potential step chronocoulometry. 给出了在电势阶跃计时库仑法测试中，反应物吸附对其定解问题的初始状态（t＝t0）影响的理论分析。 2. reactant 2. This paper studied the influence of blowing agent dosage on the main reactant of PUF, and the chemorheology in reaction process. 研究了发泡剂用量对聚氨酯泡沫主反应原料粘度的影响，以及反应过程中的化学流变性能。 3. reactant 3. In this paper, a simple coprecipitation technique had been successfully applied for preparation of pure ultrafine single phase Ta_2O_5-based solid electrolyte powders. Ammonia spirit was used to precipitate M~Ti~(4+、Zr~(4+)、Fe~(3+) and Ta~(5+) cations as hydroxides simultaneously. The effects of precipitating process conditions (such as consistency of reactant, content of PEG, pH and rate of titration) on the coprecipitation of the products and the calcination temperature were studied and the optimum process conditions for the manufacture of powders were determined. DTA, XRD, TEM, grain-size distribution meter and some other experiment methods had been employed to characterize the products. The effluent treatment was researched by lime and evaporation, and the content of F~- was tested by ion chromatograph. 本论文以金属Ta和R(R分别为Ti，Fe和Zr金属)为原料，氢氟酸为溶剂，氨水为沉淀剂，采用反向滴定化学共沉淀法制备超细氧化钽基固体电解质粉体；研究了反应物浓度、分散剂PEG10000的用量、pH值、干燥条件、焙烧温度及其它因素对氧化物粉体制备工艺的影响，确定了最佳工艺参数；并用差热仪、透射电镜、离心粒度分布仪、激光粒度仪等实验手段对固体电解质粉体有关性质进行了测试和表征；采用石灰法、蒸发法对含氟含氮废水进行了有效处理，用离子色谱仪检测了处理后废水中氟离子的含量。 4. The ionomer has high selectivity and permeability to cations, which is used as a membrane between the anode and cathode to separate the reactant gases and as an electrolyte of PEMFC. 质子交换膜是质子交换膜然料电池的核心组成之一，它是一种选择透过性膜，不仅是隔膜材料，还是PEMFC的电解质。 5. 5. The reaction conditions such as reaction temperature, reactant concentrations and surfactants, responsible for the variation of Cu2O morphologies and size, have been studied. 以乙酸铜为铜源，L-抗坏血酸为还原剂，采用简单的液相反应制备不同形貌的Cu2O微晶，并进行了表征。 6. Effects on the reaction of factors such as reactant ratio, reaction time, and reaction temperature were investigated, and optimum reaction conditions were determined as follows: mole ratio of cyanuric chloride to ethylamine to sodium hydroxide to sodium methyl mercaptide was 1:2.1:2.0:1.7, and the temperature and time of the first, second, and third substitution reactions were -2, 0, and 82℃ and 30, 60, and 180 min, respectively. 讨论了原料配比、反应时间和反应温度等因素对反应的影响，获得了较佳的反应条件。较佳反应条件为三聚氯氰：乙胺：氢氧化钠：甲硫醇钠＝l：2.1：2.0：1.7，第一、第二、第三取代反应的反应温度和反应时间分别为-2℃、0℃、82℃和30、60、180min。 7. reactant 7. In this paper, based on the contrast analysis of TSR reaction systems (wet gas and magnesium sulfate, methane and calcium sulphate, heavy hydrocarbon and magnesium sulfate), through the analysis of TSR chemical equations and study of chemical kinetics and chemical thermodynamics, combined with geologic information, it is concluded that methane is believed to be the product of the TSR reaction between heavy hydrocarbon and sulphate, and not main reactant; there is synchroneity between the TSR reaction and the increasing of C2+ gaseous Alkane, the TSR reaction rate increase as C2+ Gaseous Alkane increase and the volume of H2S almost not increase till the wet gas cracked to be dry gas and then dry gas with H2S is generated. 在对比分析湿气—硫酸镁反应体系、甲烷—硫酸钙反应体系以及重烃—硫酸镁反应体系模拟实验的基础上，通过对TSR化学反应表达式的分析以及化学动力学、热力学等理论的探讨，结合实际地质资料，认为甲烷是C2+烃类参与TSR反应的产物，TSR的发生与C2+气态烷烃的产生具有同步性，TSR的反应速率随着C2+气态烷烃的增加而加快，当湿气裂解为干气后，硫化氢含量几乎不再增加，从而形成干气伴生硫化氢。 8. H2O act as a reactant, take part in the catalytic process, the active materials. 水作为一种反应物，参与了催化分解反应，生成的活性物种。 9. Myrcene, unreacted isoprene and solvent were separated form reactant by conventional distillations, the contents of recovered isoprene, solvent and... 回收的溶剂和异戊二烯可以再利用，月桂烯的总收率大于 4 0 %，异戊二烯直接二聚合成月桂烯工艺简单，便于放大 10. Molten carbonate fuel cell; reactant gas; current density; utilization; lifetime 熔融碳酸盐燃料电池；反应气体；电流密度；利用率；寿命 11. The cell stack assembly includes a fuel inlet manifold (26) and a fuel exit manifold (28) for accepting and exhausting, respectively, a reactant fuel stream. 该电池组组件包括一燃料进口歧管(26)，及一燃料出口歧管(28)，相应用于接收和排放一反应剂燃料流。 12. The proposed method includes providing the cell stack assembly with the reactant fuel stream, sealing the fuel exhaust manifold for a first predetermined time period, thereby preventing the reactant fuel stream from exiting the cell stack assembly and opening the fuel exhaust manifold for a second predetermined time period. 此提出的方法包括：为燃料电池组件提供反应剂燃料流，在一第一预定时间段内密封燃料排放歧管，从而防止该反应剂燃料流离开该电池组组件，并在一第二预定时间段内打开该燃料排放歧管。 13. 13. The factors affecting the condensation yield were investigated, the optimum conditions of catalyst calcinations temperature, reaction temperature of synthesis, catalyst dosage, the proportion of reactant, ascertain of reaction condition of excellence and cut down of reaction time. 首次采用K2O/γ-Al2O3型固体超强碱催化合成的工艺路线，考察了催化剂的焙烧温度、合成反应温度、催化剂用量、反应物的量比对转化率的影响，确定了最优化的反应条件，缩短了反应时间，提高了产物的收率。 14. In this thesis, the AM1, MNDO, MINDO/3(mainly AM1)and INDO/S-CI semiempirical MO methods were used toinvestigate the excited-state intramolecular protontransfer reactions of salicylic acid derivatives—salicylic acid, methyl salicylate, salicylaldehyde, o-hydroxyaceto-phenone, salicylamide and 3-hydroxy-picolinamide (6 conformers and 2-3 anion species2-(2'-hydroxy-5'methylphenyl) benzotriazole(4 conformers), 2-(2'hydroxyphenyl) benzimidazole (3 conformers and 3anion species), Bis-2, 5-(2-benzoxazolyl)hydroquinone(3 conformers), 2-(2'-hydroxyphenyl)benzothiazole(2conformers) and 7-azaindole dimer (2 conformers).Theinvestigations were described as follows. Geometry optimization, relative stability andhydrogen bonding energy First, for sylicylic acid derivative molecules, the AM1, MNDO and MINDO/3 methods were used toinvestigate ground-state geometry optimization, energies, relative stabilities and hydrogen-bondingenergies on the five kinds of the molecules(designing 6 conformers and 2-3 anion species).Comparing with experimental data, the optimizedgeometry, the order of stability, the hydrogen-bonding energies and the distances between O-O in O-H..O hydrogen bonds by AM1 method were in agreementwith the experimental data, however, the C-C bondlengths optimized by MNDO and MINDO/3 were longer, C-O and O-H bond lengths were shorter; for C-N bondlengths, the results opitimized by MNDO method werethe same as those by AM1 method, nevertheless the C-Nbond lengths given by MINDO/3 method were muchshorter. For some sylicylic acid derivatives(e. g. methyl salicylate, salicylamide), the order ofstabilities on the conformers given by MNDO andMINDO/3 methods were not in agreement with theexisting conformers deduced by experimental methods, and the hydrogen bonding energies calculated by MNDO. and MINDO/3 methods were smaller. Second, the studyon the other systems found that the optimizedgeometry of the proton-transfered product with INDOmethod could not be obtained, only could theoptimized geometry of reactant be obtained, and thecalculated hydrogen bonding energies were greater. Many results of calculation indicated that the studyon the excited-state intramolecular proton transferreaction system using AM1 method was suitable andreliable. 本论文用AM1、MNDO、MINDO/3（主要是AM1）和INDO/S-CI半经验分子轨道方法对水杨酸衍生物系列——水杨酸、水杨酸甲酯、水杨醛、O-羟基乙酰苯酮、水杨酰胺和3-羟基吡啶酰胺（6种异构体和2-3种阴离子）；2-（2`-羟基-5`-甲基苯基）苯并三〓唑（4种异构体）；2-（2`-羟基苯基）苯并咪唑（3种异构体和3种阴离子）；2，5-二间氮杂氧茚氢醌（3种异构体）；2-（2`-羟基苯基）间〓杂硫茚（2种异构体）和7-〓吲哚二体（2种异构体）的激发态分子内质子转移反应在以下几个方面进行了较系统的理论研究：几何构型优化和相对稳定性及氢键能首先以水杨酸衍生物系列分子为例，用AM1、MNDO和MINDO/3方法考察了5种分子（每种分子设计6种异构体和2-3种阴离子）的基态几何构型优化，能量、相对稳定性和氢键能计算，通过和实验数据进行比较，AM1方法给出的优化几何构型、稳定性次序、氢键能和O—H。。。O氢键的0—0距离与实验数据吻合最好，MNDO和MINDO/3方法优化的C-C键长偏长，C-O键和O-H键长偏短；对于C-N键长，MNDO和AM1优化结果差别不大，而MINDO/3给出了过短的C-N键长，MNDO和MINDO/3方法给出的有些水杨酸衍生物分子（如水杨酸甲酯和水杨酰胺）异构体的稳定性次序和实验上推测的可存在异构体结果不一致，MNDO和MINDO/3方法给出的氢键能偏低，对其他体系的研究发现INDO方法常常不能得到质子转移产物的优化几何构型，只能得到反应物的优化构型，并且估算的氢键能偏高，大量的计算结果表明AM1方法对本论文研究的激发态分子内质子转移反应体系是适宜和可靠的。 15. The effect of adding a small amount of steam in reactant gas on the reaction property and carbon deposition was studied. 考察了反应气中添加少量的水蒸汽对反应和积碳的影响。 16. reactant是什么意思 16. A series of chemical reactions in which the product of one is a reactant in the next. 一系列的化学反应，其中某次反应的产物是下一次反应的反应物。 17. Aim To study the influence of initial concentration change of reactant on conversion ratio. 目的 研究反应物初始浓度变化对转化率的影响。 18. The effects of the reactant molar ratio, reaction temperature and reaction time on the products were investigated. 研究了反应物摩尔比、反应温度和反应时间等对产物的影响。 19. The method is based on the optimizing the reaction rate constant by annihilating two-way spectra of reactant and minimizing the residual standard deviation of residual matrix. 在获得动力学参数的前提下，利用最小二乘回归可解出包括中间体在内的各组分的吸收光谱。 20. Reaction rate is measured by the change in concentration of a reactant or product per unit time. 反应速率是指单位时间里反应物或生成物浓度的变化。 reactant 英英释义 noun 1. a chemical substance that is present at the start of a chemical reaction |
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