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预混
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  premixed
     Numerical Predictions of Premixed Flame Structure for CH_4/O_2/N_2 in Low Pressure
     低压CH_4/O_2/N_2预混火焰结构的数值预测
短句来源
     Feeding effects of HN8000 and Huabao4312 premixed feed in weanling piglets
     HN8000与华宝4312预混饲料对仔猪的饲养效果初报
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     Advances and prospects of premixed combustion in porous media
     预混气体多孔介质中燃烧的研究进展与展望
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     Numerical Predictions of Premixed Alkane Fuel/air during Ignition Process
     烷烃类燃料/空气预混气着火过程数值预测
短句来源
     Clinical observation of premixed insulin aspart in the treatment of type 2 diabetes mellitus
     预混门冬氨酸胰岛素治疗2型糖尿病临床观察
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  premix
     Study BMI/DDM/EP/2MZ System and Its Premix Compression Molding Composite Materials
     BMI/DDM/EP/2MZ体系及其预混料模压复合材料的研究
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     Studies on Determination Vitamin B_(12)、B_6 in the Premix Feed by RPLC
     反相色谱法测定饲料预混剂中维生素B_(12)、B_6方法研究
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     Influencing Factors of NO_x Emission from Full Premix Gas Combustion
     燃气全预混燃烧NO_x排放的影响因素
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     The origanum oil group was fed with premix containing 300 g of 10% origanum oil per ton,the chlortetracycline group was fed with premix containing 1 000 g of 15% chlortetracycline per ton and the chlortetracycline + flavomycin group was fed with premix containing 1 000 g of 15% chlortetracycline and 100 g of 4% flavomycin per ton.
     牛至油组仔猪日粮中添加10%牛至油预混剂300 g/t,金霉素组仔猪日粮中添加15%金霉素1 000 g/t,“金霉素+黄霉素”组仔猪日粮中添加15%金霉素1 000 g/t和4%黄霉素100 g/t。
短句来源
     (Ⅱ) basal diet +1 % new type of premix;
     (Ⅱ)基础日粮+1%新型预混料;
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  premixing
     The polymerization behaviors of three kinds of system, the premixing of n-C8H17OH-BF3·OEt2,the premixing of CH3COOC4H9-BF3·OEt2 and dilute BF3·OEt2(B), were compared.
     对n-C8H17OH-BF·OEt2(B)预混、CH3COOC4H9-B预混和稀B单加三种体系的聚合行为进行了比较。
短句来源
     The kinetics behaviour of synthesizing of cis-1,4-polybutadiene withNi(naph)_2-(i-Bu)_3 Al-BF_3·OEt_2-m-cresol catalyst system by premixing phenol withB was studied.
     考察了 Ni(naph)_2 -(i-Bu)_3 Al-BF_3·OEt_2 -间甲酚催化体系酚、硼预混时合成(?) is-1,4-聚丁二烯的动力学行为。
短句来源
     BHP solution premixing in a O_2(~1Δ) generator and design of the heat exchanging system
     O_2(~1Δ)发生器溶液预混及反应换热系统设计
短句来源
     The kinetic behavior of butadiene polymerization with Ni(naph)2-BF3·OEt2-Al(i-Bu)3-BF3·OEt2, or Ni-B-Al-B, as catalyst in hydrogenated gasoline was studied. The effects of polymerization temperature, polymerization time, and premixing of Ni-B on the rate of polymerization were investigated.
     本工作研究了 Ni(naph)_2 -BF_3·OEt_2-Al(i-Bu)_3-BF_3·OEt_2 (简称Ni-B-Al-B)体系催化丁二烯聚合的活性,考察了聚合温度、时间和Ni/B预混比对聚合反应的影响。
短句来源
     3) static premixing station;
     ③静态预混站;
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  “预混”译为未确定词的双语例句
     Numerical Prediction of Shock-flame Structure for CH_4/N_2/O_2 Mixtures
     CH_4/N_2/O_2预混气激波火焰结构数值预测
短句来源
     A numerical prediction of compression ignition of stoichiometric mixtures of C_7H_(16)-O_2-N_2 in an inner combustion chamber
     C_7H_(16)-O_2-N_2预混气体压缩点火过程的数值模拟
短句来源
     Conclusion Insulin aspart 30/70 is better than the biphasic human insulin 30/70 in lowering postprandial blood glucose and HbA1c .
     结论预混门冬氨酸胰岛素30/70降餐后血糖和HbA1C明显优于精蛋白生物合成人胰岛素30/70。
短句来源
     The dose of insulin used in pre-mixed group was(23±s 6)U,higher than that in glargine group significantly(16±3)U(P<0.05).
     预混组的胰岛素用量(23±s 6)U大于甘精组(16±3)U(P<0.05)。
短句来源
     Initial pressures of combustible gas used in the experiments were 33.3, 26.7, 24.0, 16.0, 10.7 kPa, respectively. The curvature radii of rectangular bend were 100 mm and 50 mm.
     实验所采用的预混气体初始压力为33. 3、26. 7、24. 0、16. 0、10. 7kPa, 90°矩形弯管的曲率半径分别为100、50mm。
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  premixed
Identifying combustion intermediates in premixed MTBE/gasoline/oxygen flame probed via synchrotron radiation
      
In this paper, the results to identify combustion intermediates in low-pressure premixed gasoline/oxygen flame with the synchrotron radiation were reported.
      
Numerical simulation of laminar premixed combustion in a porous burner
      
Premixed combustion in porous media differs substantially from combustion in free space.
      
The interphase heat transfer between a gas mixture and a porous medium becomes dominant in the premixed combustion process.
      
更多          
  premix
Experimental study on premix combustion at isosceles triangle type rate of heat release for squish type combustion chamber
      
Two squish lip type combustion chambers are designed to match separately with multiple holes injector and conical spray type injector in order to achieve premix combustion at near isosceles triangle type rate of heat release.
      
Pigs of 50 kg bodyweight were fed without premix for two months before slaughtering.
      
Their loin samples showed a lower degree of lipid peroxidation (indicated by a higher antioxidative capacity) than other pig groups which had consumed various premix levels.
      
Diseases in animals are usually treated by adding the drug (liquid and/or solid medicated premix) to animal feed.
      
更多          
  premixing
Numerical study of spray dispersion in a premixing chamber for Low-NOx engines
      
Results are reported that clarify the influence of the premixing and expansion parameters on the observed structures.
      
Heat transfer of a gas flame with different degrees of premixing
      
Results are presented of an experimental investigation of the total thermal emission, radiative and convective of a natural gas flame in a water-cooled combustion chamber, at various degrees of premixing with air.
      
When thefus mt+ andmt- gametes agglutinated without successive fusion, the amount of cell body-agglutinins sharply decreased, then increased and reached the premixing level: the recovery was blocked by cycloheximide.
      
更多          


The ignition of combustible gas stream by electric spark discharge was considered both theoretically and experimentally. By treating the spark as a linear heat source and applying the boundary layer assumptions, the development of the reaction zone was calculated. By adopting the ignition criterion based on the behaviour of the reaction zone development, the critical ignition condition was determined and discussed. The process of ignition was experimentally followed photographic inspections. Comparing with the...

The ignition of combustible gas stream by electric spark discharge was considered both theoretically and experimentally. By treating the spark as a linear heat source and applying the boundary layer assumptions, the development of the reaction zone was calculated. By adopting the ignition criterion based on the behaviour of the reaction zone development, the critical ignition condition was determined and discussed. The process of ignition was experimentally followed photographic inspections. Comparing with the computed reaction zone development, it shows that this sort of treatment do describes the essential feature of the ignition process. In addition, the influence of the spark energy, the gas stream speed and the electrode distance on the lean ignition limit of the gasoline-air mixtures by an automobile ignition coil was determined.

对电火花引燃可燃气流的问题进行了理论分析和实验研究。将电火花看作是可燃气流中的一个线热源,运用边界层方程,考察反应区的发展,以其能否扩展开去作为引燃的判据,分析讨论了着火临界条件,导出了点火能和流速等参数之间的关系。实验中拍摄了不同条件下火焰发展的面貌,与数值计算得到的反应区发展相比较,表明这种模型确是在一定程度上反映了电火花引燃可燃气流的实际情况。此外,利用汽车发动机点火系统测试了电火花能量、来流速度、电极距离等因素对汽油-空气预混气的着火稀限的影响。

κ-ε-g_ι turbulence model with the SCASM combustion model is employed topredict the flame spread behind a baffle in a plane.walled duct with the aid ofGM80 computer code.The predicted angle of flame spread is in excellent agree.ment with experiments.In the prediction the locus of the maximum fluctuation of temperature isproposed as the surface of flame;the differential equation for the time-mean.square of reactivity is solved;the influence of the local unburnt-mixture tempera-ture on the laminar burning velocity...

κ-ε-g_ι turbulence model with the SCASM combustion model is employed topredict the flame spread behind a baffle in a plane.walled duct with the aid ofGM80 computer code.The predicted angle of flame spread is in excellent agree.ment with experiments.In the prediction the locus of the maximum fluctuation of temperature isproposed as the surface of flame;the differential equation for the time-mean.square of reactivity is solved;the influence of the local unburnt-mixture tempera-ture on the laminar burning velocity in SCASM is taken into account;and thewall-function for the time-mean-square of reactivity is proposed.

本文基于运用SCASM 燃烧模型的“k—ε—gr”湍流模型,借助于GM80通用程序对平面管道内钝体后的湍流预混火焰进行了数值分析.计算得到的火焰扩展角大约为2°,和与来流状态无关的结果与普遍承认的实验结果一致。本文给出并求解了控制反应度脉动均方值gr 的微分方程,从而构造了“k—ε—gr”湍流模型;提出了以最大温度脉动值的轨迹作为火焰面的数学表征的建议;考虑了SCASM 燃烧模型中局部温度对层流火焰传播速度的影响;给出了计算近壁区gr 值的壁面函数.

The 2-dimensional diffusion flame structure has been investigated experimentally within a low speed air wind tunnel at atmospheric temperature and atmospheric pressure. The diffusion flame was formed by the gaseous fuel emitted from the cylinder wall with different diameters. The velocity profiles, the concentration distribution of CO2, CO, N2,O2, the temperature profiles and the turbulence intensities in the stream were measured. The relations between the gaseous fuel rate and the critical blowout stream velocity...

The 2-dimensional diffusion flame structure has been investigated experimentally within a low speed air wind tunnel at atmospheric temperature and atmospheric pressure. The diffusion flame was formed by the gaseous fuel emitted from the cylinder wall with different diameters. The velocity profiles, the concentration distribution of CO2, CO, N2,O2, the temperature profiles and the turbulence intensities in the stream were measured. The relations between the gaseous fuel rate and the critical blowout stream velocity were also determined. The direct ordinary photograph and the LASER interferometer photograph indicating the flame contour and it's density gradient have been taken. It was indicated by experimental results that the surrounding flame became to wake flame, and then separated into two inclined flame tails, and shriveled into two bright capes, finally they approached each other to become shorter and extinguished finally as the air stream velocity increased continuously.

作者利用渗透性材料制成圆柱,从中向外渗出可燃气,把它置于风洞中点燃,用普通摄影和激光干涉摄影拍摄了各个工况下的火焰形状,并测出CO_2,CO,N_2,O_2等气体的浓度分布,速度场,温度场和湍流度分布,以研究雷诺数从0到10~5时火焰结构的发展;研究渗透量和吹熄速度之间的关系。实验结果表明:随着雷诺数不断增大,围绕渗透出可燃气体的圆柱强迫对流时的火焰从全包型转变成尾流型,火焰从扩散型转变成预混型;提高可燃气体的渗透量可以提高吹熄速度;用最大化学反应速率所求出的最佳混气比恰恰出现在火焰的锋面上。

 
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