step by step reaction 中文意思是什麼
step by step reaction
解釋
逐步反應-
Water - borne epoxy resin has been synthesized by grafting route, epoxy resin, methacrylic acid, butyl acrylic as primal materials. the mechanism of the preparation, emulsification and curing of the resin were described, and the whole course was analyzed. the correlative factors on each step reaction were discussed in detail
探討了以環氧樹脂、甲基丙烯酸和丙烯酸丁酯為原料，由接枝的路線合成水可分散性環氧樹脂的制備、乳化及固化成膜一系列的反應機理，對過程進行了分析，並討論了有關因素對各步反應的影響。 -
In this paper, high concentration vanadium electrolyte has been prepared by electrolysis, graphite and graphite felt electrode also have been made, moreover, the electeodes have been activated, and based it, a lab - level vanadium battery has been manufactured. cyclic voltammetry, current step and invariable current charge / discharge method have been used to study the reactive mechanism of electrolysis, of vanadium electrode reaction and of electrode activation, also to investigate maiden charge process and electricity performance of vanadium battery. the influence of electrode activation and trace stibium ion, indium ion added into vanadium electrolyte has been discussed
利用循環伏安法、恆電流階躍法、恆電流充放電循環等電化學方法，探討了電解法制備釩液流電解質的反應機理，考察了釩的電極反應、電極表面活化處理對釩的電極反應的影響，結合電極反應分析了活化的機理；還考察了釩電池初次充電活化過程及恆流充/放電循環的電性能；並且考察了添加銻離子、銦離子對釩電池電性能特別是析氫行為的影響。 -
Polymers are most commonly formed by two main types of growth reaction traditionally referred to us condensation (step reaction) and addition (chain reaction) processes.
形成聚合物的最普通方式是靠兩種主要的增長反應，習慣上分別稱做縮合（逐步反應）過程和加成（鏈式反應）過程。 -
All cross sections of neutron induced reaction, elastic scattering angular distribution, neutron energy spectrum and double differential cross sections were calculated by using optical model and the semi - classical model of multi - step nuclear reaction processes based on the hauser - feshbach and exciton model in the energy region up to 20mev
應用光學模型和以復合核平衡態理論（ hauser ? feshbach理論）及激子模型為基礎的核反應多步過程的半經典理論，計算了當中子入射能量低於20mev時n + ~ （ 112120 ） sn反應的所有中子入射截面、彈性散射角分佈、出射中子能譜以及出射中子雙微分截面。 -
The calculated results indicate the theoretical results are in good agreement with existed experimental data, and it is successful to predict nuclear reaction by using optical model and the semi - classical model of multi - step nuclear reaction processes in theory. en key words : optical model ; hauser - feshbach theory ; exciton model ; equilibrium processes ; pre - equilibrium processes
為了保證整個反應過程的能量守恆，我們嚴格考慮了反沖核效應的影響。計算結果表明，理論值與實驗值符合的很好，可以認為運用光學模型及核反應多步過程的半經典模型從理論上預言核反應是很成功的。 -
It was demonstrated that the reaction temperature, solvent, concentration of the reactants and catalyst, ageing time affected the particle size and distribution. by controlling these factors or feeding teos step after step, monodispersed and spherical ultrafine sio2 powder could be prepared
討論了醇、水、氨、正硅酸乙酯、溫度、陳化時間等多種影響因素對顆粒粒徑及粒徑分佈的影響，得出了制備超細二氧化硅粒子的優化的工藝條件。 -
Synthesis the water soluble phenol - formaldehyde resin by two step alkaline catalytic reaction
2固化甲階堿性酚醛樹脂結構研究 -
The management of the assembly line of clothing is the most important link in the production of the clothing, and chooses a good procedure synchronization scheme is a complicated and changeable course in step assembly line among them, and it needs not only the expert ' s abundant knowledge and flexible judgment, but also a large amount of repetitive operation. this paper grades the assembly line of clothing intelligently in principle of the basis expert system, and develops quick and high - efficient arrange system of procedure synchronization, and makes the production management of the clothing reach the request for the quick reaction by using intelligent technology
服裝流水線的管理是服裝生產中最重要的一個環節，其中編排流水線的同步化方案是一項復雜多變的過程，既需要專家的豐富知識和靈活判斷，又牽扯到大量的重復進行的思維過程，本文依據專家系統的原理對服裝流水線進行智能化編排，開發出迅速高效的工序同期化的編排體系，運用智能技術，使服裝生產管理達到快速反應的要求。 -
A planar tetradentate dinuclear ligand, 3, 5 - bis ( 2 - pyridyl ) pyrazole, was synthesized by a three - step reaction of esterification, condensation and addition
以2 -吡啶甲酸為原料，經酯化、縮合、加成合成了平面四齒雙核配體3 ， 5 -二（ 2 -吡啶基）吡唑。 -
Through the synthesis of licoo2 by using non - water dispersant and two - step roasting, influences of microstructures of precursor, the roasting temperature and the reaction time on the electrochemical properties of licoo2 were studied. it indicated that co3o4 with nano - crystalline have very good electrochemical property, and can shorten solid reaction time
02的制備工藝，考察了不同微結構的co30 ;先驅物，焙燒溫度和焙燒時間等工藝條件對licoo ，電化學性能的影響，其中以納米晶co3o ;制備出的licooz表現出優良電化學性能，且大大縮短了反應時間。 -
Mirtazapine was prepared by a seven - step reaction, namely nucleophilic ring - opening reaction, chlorination, cyclization, uncleophilic substitution, hydrolysis, reduction and cyclization from styrene oxide and n - methylethanolamine as the starting materials, with overall yield of 22. 6 %
摘要以環氧苯乙烯和n -甲基乙醇胺為起始原料，經親核開環、氯代和環合反應得到中間體1 -甲基3 -苯基哌嗪。 -
Abstract : first, the key magnet statuses and their pertinent mmf. position of exterior rotor brushless dc motor are described in this paper. second, the air - gap magnetic field and the armature reaction of the three - phase six - step exterior rotor brushless dc motor used in electrical bicycle are analyzed by means of mmf. vector, mmf. integration and magnetic field fem respectively. some valuable conclu - sions for designing this kind of motor are obtained
文摘:給出了外轉子無刷直流電動機的典型磁狀態及其對應的磁勢矢量位置，並用磁勢矢量合成法、磁勢積分法及電磁場的有限元方法對電動自行車用三相六狀態外轉子無刷直流電動機的氣隙磁場及電樞反應進行了詳盡的分析，從而得到有益於該種電機設計的結論。 -
In the numerical solution algorithm, the method of characteristics, analytic method and galerkin finite element method ( galerkin - fem ) can be chosen to solve the advective equation, diffusion equations, reaction ( source / sink ) equations, propagation equations and pressure poisson equation, respectively. the developed new algorithm has been verified using analytical solution of circular conduit flow in a reynolds number range of 100 < re < 1 000 and experimental data of the laminar flow over a backward - step facing step. the flow properties are well characterized by this three - dimensional numerical model
本論文在評述三維粘性流動數學模型已有研究成果的基礎上，著重在數值計算方法的選擇和定解條件的給定對數學模型計算結果的影響進行了研究，並首次提出了求解三維純對流方程的高精度的擬協調單元法，建立了三維低雷諾數re流動的數學模型，並在圓管流動、臺階突擴矩形管道流動中得到驗證和應用。 -
In order to further investigate the role of axudl in human tumor carcinogenesis and the potential association between the axudl gene expression status and the stimulation of transforming growth factor beta in human cancers, the present study was performed in three aspects as follows : ( 1 ) cloning full length enconding region cdna of axudl and construction of eukaryotic vector that expression the fusion protein of axud1 and influenza virus hemagglutin ha epitope tag ; ( 2 ) exploring the time and dose effects of tgf - 1 on the expression - of axudl gene in hepg2 hepatoma cells and spc - a1 lung carcinomas cells, and studying the effects of overexpression of axud1 on the expression of cell cycle and apoptosis related protein in hepg2 hepatoma cells ; ( 3 ) construction and expression of human axudl in e. coli m15. the following main results and conclusions can be obtained from the present study : 1. the full length ecnoding region of human axudl cdna from human peripheral blood lymphocytes was successfully cloned using one step rt - pcr method, and constructed into a eukaryotic expression vector which can be expressed a ha - axud1 fusion protein with axud1 and influenza virus hemagglutin ha epitope tag. the recombinant plasmid was identified by polymerase chain reaction, restriction endonuclease maping and sequencing, this expression vector might be instrumental to further study the function of axud1 protein in tumor cells
為了進一步研究axud1在人類腫瘤發生中的作用及axud1基因的表達狀況與tgf -介導的信號通路的關系，本實驗研究分為三個部分： （ 1 ） axud1基因cdna全長編碼區的克隆和ha表位標記的axud1基因表達載體的構建； （ 2 ）探討肝癌細胞hepg2和肺腺癌spc - a1細胞中tgf - 1誘導的axud1基因表達的時間、劑量效應以及誘導表達的可能機理，並研究axud1的過表達對細胞周期和細胞凋亡相關蛋白表達的影響； （ 3 ） axud1原核表達載體的構建及其在大腸桿菌中的表達。本實驗的主要結果和結論如下： 1利用一步法rt - pcr成功地從人類外周血淋巴細胞中克隆出axud1基因編碼區cdna ，並將其構建入真核表達載體中，編碼的ha - axud1融合蛋白帶有流感病毒凝血素ha的表位標記肽段。 -
Part : study on the intercalated copolymerization and properties of exfoliated polyacrylic acid / acryl amide / montmorillonite ( paa / am / mmt ) hybrid using cation exchange resin as cation source, the montmorillonite convert to sodium form by means of the cation exchange reaction of the montmorillonite and cation resin. the two - step intercalation method by using two different organic salts was sued in the modification of montmorillonie. its effect was much better in preparing polyacrylic acid / acrylamide / montmorillonite ( paa / am / mmt )
第三章插層共聚制備剝離型聚丙烯酸/丙烯酰胺/膨潤土納米雜化材料及其熱性能研究利用732陽離子交換樹脂對膨潤土進行鈉化，二次插層對鈉化膨潤土進行處理，溶液共聚法制備了剝離型聚丙烯酸/丙烯酰胺/膨潤土（ paa / am / mmt ）納米雜化材料。 -
These results showed that the three isolates were infectious bursal disease virus. the full - length cdna of the genomic segment a of two viruses, one virulent field strain ibdv zj2000 and one attenuated strains ibdv jd1, were amplified in a single step procedure by long - accurate reverse - transcription polymerase chain reaction ( la - pcr ), cloned into pgem - t easy vector, and sequenced
分別以傳染性法氏囊病病毒zj2000株（野毒株）和jd1株（弱毒株）基因組dsrna為模板，採用long - accuratert - pcr （ la - pcr ）一步法擴增並克隆了兩株病毒的基因組a節段全長cdna 。 -
In the course of oxidation, reaction temperature should rise step by step, and in the late stage, reduced pressure distillation should follow so that the concertration of glyoxalic acid can rise and production rate of allantoin can rise up to 40 %
在氧化反應的過程中逐步地提高反應溫度，反應後期進行減壓濃縮，提高了乙醛酸的濃度，縮短了氧化時間，並使尿囊素產率達到40 % 。 -
Three new asymmetric bis - schiff bases containing thiocarbohydrazide were synthesized by the reaction of thiocarbohydrazide with ketone and different aldehydes step by step
通過二氨基硫脲與酮或不同的醛進行分步反應，合成了3種未見報道的不對稱雙席夫堿。 -
It was confirmed that the first reaction layer of tic with very fine crystal grains is due to the reaction ti + sic - tic + si. this reaction is a reaction - controlled one. however, the other reactions in the second step a re controlled by elements diffusion
Scs一6sic / ti3ai復合材料的界面反應產物可多達6層，依次為:緊挨著纖維的晶粒細小的tic層、晶粒細小的tissi ;層、等軸晶粒的tic層、 ti3si層、 ti3aic層及ti5si3層。
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