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bubble
相关语句
  气泡
    Study on Bubble Coalescence in Multi-phase Systems Involving Liquid Phase
    含液多相体系中气泡聚并行为的研究
短句来源
    Study and Simplify on the Mathematical Model of the Bubble Growth Process of Extrusion Foam Molding
    挤出发泡成型中气泡膨胀过程的数学模型研究及简化
短句来源
    Study into the Characteristic of Initial Bubble Frequency in a Fluidized Bed
    流化床内初始气泡频率实验研究
短句来源
    A Conductivity Microprobe for the Determination of Bubble Properties in a MuItiphase Flow System
    用于测定多相流动体系内气泡特性的微型电导探针
短句来源
    THEORETICAL PREDICTION AND EXPERIMENTAL INVESTIGATION OF OXYGEN CONCENTRATION IN BUBBLE AND PPARTICULATE PHASES IN FLUIDIZED BED COMBUSTORⅠ.THEORETICAL MODEL
    流化床燃烧器中气泡相和密相氧浓度的理论预测与实验验证Ⅰ.理论模型
短句来源
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  “bubble”译为未确定词的双语例句
    Numerical and Experimental Investigation on Gas-Liquid Two-Phase Flow in a Bubble Column
    鼓泡塔气液两相流的数值模拟与实验研究
短句来源
    Study on Dynamic Bubble Nucleation Mechanism in Cellular Plastics
    泡沫塑料动态成核机理的研究
短句来源
    COLD MOULDING TEST OF BUBBLE TOWER IN ACETYLENE DIMERIZATION
    乙炔二聚反应鼓泡塔冷模试验
短句来源
    Gas Holdup and Mass Transfer of Bubble Column
    气升柱式多相反应器的气含率及传质特性
短句来源
    Study on the Pressure Drop of Gas—Liquid Two—Phase Bubble Flow in Vertical Pipe
    垂直管内气液两相流的探讨——气泡流压力降
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  bubble
It produced no air bubble in the adhesives layer under the condition of no vacuum environment, and ensures the assembly dislocation ?0.
      
This paper attempted to numerically analyze the action process based on damage mechanics when a jet created by bubble collapse acted on the bearing surface in the process of cavitation erosion.
      
An effective medium method is developed for the slightly compressible elastic media permeated with air-filled bubbles, according to the nonlinear oscillation of the bubble, which happens when compressional wave travels through the porous media.
      
Two flow regimes were discovered by measuring flow rate vof water through thin capillaries containing small gas bubble.
      
The longer the bubble, the greater this contribution.
      
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A simplified volumetric method for the determination of sulfur in organic compounds is described. The results obtained by this method are in agreement with those obtained by the gravimetric method, The method is stated as following: Weigh accurately a sample containing 30—75 mg SO_4~- into a nickel crucible containing 1 g. of KNO_3 and 8 g. of KOH. Heat the crucible carefully with a small flame until the contents melt, increase the heat gradually until the decomposition is complete. Leach the melt with water,...

A simplified volumetric method for the determination of sulfur in organic compounds is described. The results obtained by this method are in agreement with those obtained by the gravimetric method, The method is stated as following: Weigh accurately a sample containing 30—75 mg SO_4~- into a nickel crucible containing 1 g. of KNO_3 and 8 g. of KOH. Heat the crucible carefully with a small flame until the contents melt, increase the heat gradually until the decomposition is complete. Leach the melt with water, acidify with HCl and heat gently until bubbles cease to evolve. Filter, dilute the filtrate to about 60 ml. and after neutralizing with 6 N NH_4OH, add 0.2 ml. 6 N HCl. Heat to 70℃, add gradually the benzidine hydrochloride reagent to precipitate the sulfate in the solution. After cooling in an ice bath for 1 hour, the precipitate is filtered from the solution. Suspend the precipitate in water, heat to 80℃ and titrate with 0.1 N NaOH solution, using phenolphthalein as indicator.

测定一般有机化合物中的硫含量,可將有机物先用KOH—KNO_3破坏,使成硫酸联苯胺沉淀后,再滴定其中的硫酸根。应用本法可测定相当于30—75毫克硫酸根的含硫有机化合物,所得結果准确(表1,3)。平均誤差为±0.11%(表2),操作比重量法简单,所费时間亦少,因此可作为测定有机物中硫含量的快速方法。

Design data for high purity toluene recovery from platformate by extractive distillation with phenol, were obtained by a pilot plant study. The extractive distillalations column, 200mm in diameter, possessed 44 bubble cap plates and had a Capacity o?processing 250 kilograms of feed per day. The platformate was first prefractionated to 70-117℃, which contained 0.8% benzene and 48% toluene by weight. The heart cut was then used as the feed for the extractive distillation. The recommended operating conditions...

Design data for high purity toluene recovery from platformate by extractive distillation with phenol, were obtained by a pilot plant study. The extractive distillalations column, 200mm in diameter, possessed 44 bubble cap plates and had a Capacity o?processing 250 kilograms of feed per day. The platformate was first prefractionated to 70-117℃, which contained 0.8% benzene and 48% toluene by weight. The heart cut was then used as the feed for the extractive distillation. The recommended operating conditions were as follows: phenol/feed ratio, 4; reflux ratio, 4-5; feed temperature, 120℃; phenol inlet temperature, 130℃. The actual plates of rectifying, stripping and phenol recovery section were 19, 20 and 5 respectively. The recovery of nitration grade toluene from the feed was 97-98%. When losses in prefractionation, acid washing and redistillation were included, the net recovery of toluene from the platformate was 93%. The result of this study gave the data for designing of full scale production plants.

为了提供以苯酚为溶剂用抽提蒸馏法从铂重整生成油中抽取纯甲苯的工业装置设计依据和操作条件,进行了日处理量为250公斤的中型试验。抽提蒸馏塔为一直径200毫米,拥有44个塔盘的泡帽塔。铂重整生成油先经预分馏切割成70—119℃馏份,其中苯含量为0.8%(重量),甲苯含量为48%(重量)。然后将该馏分进行抽提蒸馏,合理操作条件为酚油比4:1(体积比);回流比4.5;油进口温度120℃;酚进口温度130℃。精馏段塔盘数为19,汽提段塔盘数为20,酚回收段塔盘数为5。产品经酸碱洗涤和再蒸馏后为硝化级纯度的甲苯,抽提蒸馏的甲苯收率可达97—98%(重量)。如包括预分馏损失,则甲苯的收率为96%(重量)。酸碱洗涤和再蒸馏损失一般可按3%计,因此,纯甲苯净收率为93%(重量)。试验结果提供了工业装置的设计数据。

This paper deals with the processing of rosin amine and the equipment needed for the experiment on an enlarged scale, as well as the reaction mechanism involved. The processing conditions have also been investigated. A comparison between the methods of hydrogenation by still process and by recycling the hydrogen bubbles through a tubular hydrcgenator has been made; It shows that the latter gives a higher absorption rate of hydrogenation and a greater productivity.

在松香胺制备试验初报的基础上,本文进一步阐述了松香胺制备扩大试验的工艺流程、反应原理、主要设备及操作方法。对松香胺制备的工艺条件进行了探讨。对松香腈的加氢工艺流程,即釜式加氢与带氢气循环的管式加氢作了对比。结果表明:采用带氢气循环的管式加氢,吸收效率高,生产能力大,适合于松香胺的工业化生产。

 
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