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反应     
相关语句
  reaction
    Study on Synthesis of Organic Chloride by the Reaction Rectification Technique
    有机氯化物的反应精馏合成研究
短句来源
    Study on the Nonlinear Behavior of CO Coupling-regeneration Reaction System
    CO偶联再生反应系统的非线性行为研究
短句来源
    Transport and Reaction in Microchannel Recator
    微通道反应器的传递和反应特性
短句来源
    The Studies of Catalysis and Chemical Reaction Engineering on Hydroesterification of Ethylene to Synthesis of Propionic Ester
    乙烯氢酯基化合成丙酸酯的催化及反应工程研究
短句来源
    A STUDY ON THE REACTION OF PHOSPHATE BONDED ALUMINA CASTABLES AT 105~500℃
    磷酸铝胶结剂和刚玉骨料在105~500℃的反应
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  reactions
    Reactions Among Constituents of the Typical Barium Crown Glass Batch
    典型钡冕玻璃配合料之间的反应
短句来源
    The Modelling of Successive Reactions in a Channel Reactor
    渠道式反应器中连续反应的模型化
短句来源
    The control Degree of Cathodic and Anodic Reactions is Electroless Copper Plating System of Cu(Ⅱ)-EDTA-HCHO
    Cu(Ⅱ)-EDTA-HCHO化学镀铜中阴、阳极反应的控制程度
短句来源
    Reaction Kinetics of Methanol Synthesis in the Presence of C301 Cu-Based Catalyst (Ⅲ) Effectiveness Factors of Parallel Reactions
    C3O1铜基催化剂甲醇合成反应动力学——(Ⅲ)平行反应的效率因子
短句来源
    Comparison between Solid State Reactions and Phase Transformation Reactions during the Crystallization Process of Glass in K_2O-MgO-MgF_2-SiO_2 System
    K_2O-MgO-MgF_2-SiO_2系统固相反应与玻璃析晶相变反应的比较
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  reaction caldron
    The paper expounds the superiority of DYJ serried oil oil-heaters compared with the steam boiler and plus forward the way use it on chemical reaction caldron and plastic extruding machine.
    本文主要叙述了DYJ系列油加热器与蒸汽加热方式相比的一些优越性,以及怎样用在化工行业的反应釜和塑料压延设备上.
短句来源
    Improved caldron can pressed the gliding block of the press against top cylinder, so as to increase the service life of the reaction caldron.
    改进后的反应釜由于使用压力机的滑块与顶缸压紧 ,提高了反应釜的使用寿命。
短句来源
  process reaction
    During the pressureless sintering of Si 3N 4, Al 2O 3, AlN and Y 2O 3 mixed powder, as SiO, CO and N gas are produced in the process reaction and since raw powder Si 3N 4 has a higher decomposition pressure at the sintering temperature and pressure, there is a sintering weight loss anti densification process accompanying the sintering densification process.
    在Si3N4 ,Al2 O3,AlN和Y2 O3 混合料常压烧结过程中 ,由于过程反应生成SiO ,CO ,N2 等气相物质和由于Si3N4原料在高温常压下分解压高 ,从而常压烧结致密化过程始终伴随着一个失重的塑致密化过程 .
短句来源

 

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      reaction
    Several 1-(substituted phenoxy)-3-{[4-(4-trifluoromethyl) phenoxy] piperidin-1-yl} propan-2-ols (str.II) were prepared in a six-step reaction sequence starting from methylamine and ethyl acrylate and evaluated for antidepressant activity.
          
    Substituents at the 4th and 5th positions of the target thiazoles were introduced by a Hantzsch reaction, and the chain at the second position was extended through a Sandmeyer reaction, formylation, and Wittig olefination.
          
    A series of ortho- meta- and para-N9-[(chloromethylphenyl)methyl]chloropurines 4-12 and N7-[(chloromethylphenyl)methyl]chloropurines 13-21 were obtained by the reaction of various substituted chloropurines with α,α'-dichloroxylenes.
          
    A series of 1-[(sub)]-6-fluoro-3- [(sub)]-1, 3, 4-oxadiazol-2-yl-7-piperazino-1, 4-dihydro 4-quinolinones were synthesized by the reaction between ciprofloxacin and norfloxacin with an appropriate acid hydrazide in phosphorous oxychloride.
          
    The pyrazolo[4,3-d]oxazinone 4 was obtained from direct reaction of the acid 1 with hydroxylamine hydrochloride.
          
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      reactions
    The operator-splitting methods for the mathematic model of one kind of oin reactions for the problem of groundwater are considered.
          
    The copper complexes of the above ligands were used in catalytic asymmetrical Henry reactions.
          
    Chemical and physical reactions during the low temperature aqueous chemical synthesis of nanostructured Bi2Te3 powders were investigated in-situ by pH measurement, color observation of the solution and X-ray diffraction analysis of the powders.
          
    Reactions between the dendrimers and acid-processed silica gel took place, with toluene reflux and organic base as catalyst.
          
    This work may provide theoretical guidance for choosing solvents for these kinds of reactions and also may serve as basis for further industrialization.
          
    更多          
      process reaction
    Drawing process reaction under thermal actions and pe
          
    The s-process reaction path in the vicinity of 176Lu has attracted considerable interest for a long time.
          
    We can explain this by looking at adsorption process reaction mechanism on biosorbents.
          


    Minute amount of sulfur dioxide and impurities are always present in the air of industrial area. Under sunlight, smog is formed, scattering light and reducing visibility. This article is to ascertain the effect of rate of photochemical oxidation of sulfur dioxide in air at high relative humidities.

    工业区大气中常含微量二氧化硫及各种杂质。天晴时可能形成烟雾,分散光线,减缩视距,本研究即系确定其影响。 实验时以经过特种过滤器所得纯粹空气与二氧化硫在不同湿度下混合,贮於Lucite容器(7.94升),用RS日光灯自顶部相继透过红外线过滤器及Plexiglas IA照耀达1至2小时。光切断后作用即中断。所得硫酸气溶胶质点大小作对数一概率分布。然后将硫酸气溶胶在声速下抽经喷射撞击器,利用气溶胶质点惰性作用,收集微量硫酸。撞击器中有百里香蓝处理过的胶片。藉可见光线透过胶片的强度,可以分析硫酸气溶胶的数量,最低可测至0.01微克硫酸。 实验结果显示二氧化硫在高湿度(98%相对湿度)时所得光化学反应速率与低湿度时相同。这表示化学反应主要为气相反应,在液相中反应速率相对而言是很低的。二氧化氮,氯化钠核及五氧化二钒为工业区大气中常存在的杂质,经引入后,并未发生触媒作用。世界上若干工业区大气中二氧化硫在所研究情况下约需300小时中午日光照耀,可将视距减至1公里。

    Some types of glass made thermal conductivity cells for gas analysis were prepared by author, which were constructed with tungsten wire 0.013m. m. in diameter, as a hot wire. Some of their properties had been tested with the gaseous mixtures of hydrogen-nitrogen and of air-carbon dioxide. The prepared thermal conductivity cells may be used with a higher sensitivity, and insensitive to the variation in the rate of gasflow; and with a rapid response to the variation in the composition of gaseous sample during...

    Some types of glass made thermal conductivity cells for gas analysis were prepared by author, which were constructed with tungsten wire 0.013m. m. in diameter, as a hot wire. Some of their properties had been tested with the gaseous mixtures of hydrogen-nitrogen and of air-carbon dioxide. The prepared thermal conductivity cells may be used with a higher sensitivity, and insensitive to the variation in the rate of gasflow; and with a rapid response to the variation in the composition of gaseous sample during the continuous analysis. The apparatus can be used suitably as a detector in gas chromatography.

    作者用直徑爲0.013mm鎢絲爲熱絲、試制了幾種玻璃制氧體分析用導熱池,並用■—■混合物和空氣—二氧化碳混合物試驗其性能。所製得的導熱池具有較高的靈敏度,對氣體流速改變不靈敏。在連續分析中,對氣體組成改變的反應較快,可適於在氣相色層中用作测定器。

    75—80% Al_2O_3. CaO·6Al_2O_3,

    含Al_2O_3在75~80%的高铝砖使用于炼钢平炉的喷火口及炉顶部分,其腐蚀过程是相似的。应用偏光显微镜监定了未被腐蚀和腐蚀过后的高铝砖的矿物组成,未腐蚀砖主要由无色刚玉晶体和少量莫来石及玻璃组成,腐蚀后的高铝砖中有刚玉、赫博慕石(hoegbomite)、六铝酸钙(CaO·6Al_2O_3)、再结晶刚王、透明的尖晶石、磁鉄矿和玻璃质等。从腐蚀深浅不同的部分分别取样,进行了化学分析。根据分析结果制出腐蚀过程中化学成分变化曲线,并研究了化学成分变化与矿物成分变化的对应关系。在高铝砖腐蚀过程中,最有兴趣的物理化学反应是赫博慕石的形成。作者讨论了这个矿物形成的机理,更与自然岩石中赫博慕石的出现作了比较。 总结显微镜下研究及化学分析结果,作者提出来关于高铝砖使用时损坏原因的理论上的推测,并提出来改进高铝砖质量及延长高铝砖寿命的方向。

     
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