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drag reduction agents
相关语句
  减阻剂
     In this paper,the study has been made to research the domestic and international usage of drag reduction agent at present and development trend on the basis of lots of the literature checked. And combining the actuality of Xinjiang with small experiments for foundation,the design and development of reactorⅠand reactorⅡ has been made to produce the polymer drag reduction agents in the middle of the experiments.
     本文在查阅大量文献的基础上,研究了当前国内外减阻剂的使用现状及发展趋势,并结合新疆实际,以小试为基础,设计开发了生产高分子聚合物管输油品减阻剂的中间试验用反应器Ⅰ和反应器Ⅱ。
短句来源
     With the rapid development of petroleum industry, high molecular polymers as drag reduction agents (DRA)have been widely used in conduits during the transportation of crude oil.
     随着石油工业的发展,超高分子量聚合物作为原油输送减阻剂在国内外输油管线中得到日益广泛的应用。
短句来源
     Working area for drag reduction agents (DRA) is in turbulence area, and it can reduce resistance as well as increase transportation effectively.
     减阻剂的作用区域在流体的湍流区,它能有效的降低流体阻力增加流量。
短句来源
     With the rapid development of petroleum industry, high molecular polymers as drag reduction agents (DRA) is widely used in pipelines during the transportation of crude oil.
     随着石油工业的迅猛发展,高分子减阻剂在输油管道中的应用日益广泛,对减阻剂性能的综合评价已成为了一个重要课题。
短句来源
  降阻剂
     Analysis of Anti-corrosive Problems of Applying Drag Reduction Agents on the Grounding Deviceof Power Supply Line
     供电线路接地装置采用降阻剂防腐问题分析
短句来源
  “drag reduction agents”译为未确定词的双语例句
     The Study on Segment Motion of Drag Reduction Agents of Crude Oil Using 2,2,6,6-tetramethylpiperidone as Spin Probe
     自旋探针法对原油减阻剂的研究
短句来源
  相似匹配句对
     and the principle of optimization of drag reduction;
     提出了系统匹配与优化减阻问题。
短句来源
     THE EFFECT OF AFTERBODY DEVICES ON DRAG REDUCTION
     机身后体装置对阻力的影响
短句来源
     Analysis of Anti-corrosive Problems of Applying Drag Reduction Agents on the Grounding Deviceof Power Supply Line
     供电线路接地装置采用降阻剂防腐问题分析
短句来源
     Study of Drag Reducing Agents in Multiphase Pipelines
     油气水多相管流中降阻剂机理研究
短句来源
     Working area for drag reduction agents (DRA) is in turbulence area, and it can reduce resistance as well as increase transportation effectively.
     减阻剂的作用区域在流体的湍流区,它能有效的降低流体阻力增加流量。
短句来源
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The segment motion of drag reduction agents of crude oil is considered to correlate to drag reduction efficiency. In this paper, 2,2,6,6-tetramethylpiperidone was used as a spin probe. The ESR spectra of probe were recorded at different temperatures and the values of T50G were calculated. It was discovered that the lower the T50G, the higher the drag reduction efficiency.

使用2,2,6,6-四甲基哌啶酮作为自旋探针,在不同温度下测定了探针的ESR波谱并计算了高分子链松驰特征温度死T_(50G),发现(T_(50)G越小,减阻效率越高。

Several kinds of poly-α-olefines were synthesized as drag reduction agents for crude oils.The segment motion of poly-α-olefines was investigated by using 2,2,6,6-tetramethylpiperidone-1-oxyl as spin probe.It is found that the drag reduction effi-ciency of polyolefines is dependent on both their T_(50G) and segment motion.

用混合型Ziegler-Natta催化剂,合成了多种用作原油减阻剂的烯烃聚合物,研究发现Al(iBu)_3/AlEt_2Cl的摩尔比在2-3/7-8,反应时间约为1h左右,能得分子量较大的聚合物,用2,2,6;6-四甲基哌啶酮氮氧自由基为自旋探针,研究了烯烃聚合物的链段运动,发现减阻效率和链段的柔顺性有密切关系。

According to comparative tests,treating cement slurry with high frequency electric field can enhance the strength of cement bond by 11 7%.This paper preliminarily discusses the operating mechanism and benefit evaluation of treating cement slurry with high frequency electric field.It is estimated that treating cement slurry with high frequency can reduce the Q min by 9 245% and decrease the necessary drag reduction agent by 1/10-1/7.

通过对比试验得知,高频电场处理水泥浆可使水泥石强度提高11.7%。初步探讨了高频电场处理水泥浆的作用机理及效益评价问题。预计高频电场处理水泥浆可使最小顶替排量降低9.245%,减阻剂用量减少1/10~1/7。

 
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