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direct electric field     
相关语句
  直流电场
     Direct electrodeposition extracting of gold from cyanidized liquid is based upon the deposition of gold-cyanide complex Au(CN)_2~- in the solution,and makes gold depositing at the cathode under direct electric field.
     用电积方法直接提取氰化液中金,是根据溶液中金氰络阴离子Au(CN)-2的沉积原理,在直流电场作用下,使金在阴极上析出。
短句来源
     Due to the Al-Cu alloys, the eutectic lamellars are disturbed by the direct electric field and the degenerate eutectic structures appear due to the effect of altenative electric fields.
     电场细化了共晶合金的两相间距,对于Al-Cu合金来说,电流密度较大时,直流电场作用下的共晶片层变的紊乱,交流电场作用下则出现了退化共晶组织。
短句来源
     In this paper, the theoretical formulae of primary arm spacing z_1 and the initial secondary arm spacing z_(20) were proposed with the consideration of the effect of direct electric field. To verify the formulae the experiments were carried out for Sn—12wt%Bi alloy under the unidirectional solidification condition.
     本文提出了在直流电场作用下一次枝晶间距Z_1和最初形成的二次枝晶间距Z_(20)的理论表达式,并在定向凝固条件下用Sn—12%Bi合金进行了实验验证。
短句来源
     The solidifying structure of Al-Si alloy is refined by the electric field, the eutectic Si change from flake-like structures to fine particles, the effect of direct electric field is more than altenative electric field, the clearance of the two phases is decreased by electric field.
     电场细化Al-Si合金的凝固组织,共晶Si由原来的针片状演化成细小的颗粒状,直流电场较交流电场的作用更明显;
短句来源
     This paper introduced the technological measures and tests of increasing recovery efficiency with direct electric field conducted in two oil fields of Russia.
     介绍了俄罗斯两油田用直流电场提高原油采收率的技术措施和试验情况。
短句来源
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  电场直接
     The Ascending Motion of the Filament and the Direct Electric Field Acceleration
     暗条上升运动与电场直接加速
短句来源
  直流电场作用
     Direct electrodeposition extracting of gold from cyanidized liquid is based upon the deposition of gold-cyanide complex Au(CN)_2~- in the solution,and makes gold depositing at the cathode under direct electric field.
     用电积方法直接提取氰化液中金,是根据溶液中金氰络阴离子Au(CN)-2的沉积原理,在直流电场作用下,使金在阴极上析出。
短句来源
     Due to the Al-Cu alloys, the eutectic lamellars are disturbed by the direct electric field and the degenerate eutectic structures appear due to the effect of altenative electric fields.
     电场细化了共晶合金的两相间距,对于Al-Cu合金来说,电流密度较大时,直流电场作用下的共晶片层变的紊乱,交流电场作用下则出现了退化共晶组织。
短句来源
     In this paper, the theoretical formulae of primary arm spacing z_1 and the initial secondary arm spacing z_(20) were proposed with the consideration of the effect of direct electric field. To verify the formulae the experiments were carried out for Sn—12wt%Bi alloy under the unidirectional solidification condition.
     本文提出了在直流电场作用下一次枝晶间距Z_1和最初形成的二次枝晶间距Z_(20)的理论表达式,并在定向凝固条件下用Sn—12%Bi合金进行了实验验证。
短句来源
     The effects of external direct electric field on the seepage characteristics of oil and water phases and rock property were studied by means of a great many of laboratory tests.
     通过大量室内试验 ,详细分析研究了外加直流电场作用下对油水两相渗流规律及储层岩石性质的影响 .
短句来源
  直接电场
     The model of spectral filter of the nonlinear BBO crystal was constructed in a spectrall phase interferometry for direct electric field reconstruction(SPIDER) apparatus,and the bandwidth of the conversion efficiency for the BBO crystal with different prameters were calculated. The effects of the phase mismatch in the nonlinear BBO crystal and the thickness of the crystal on measuring the pulses with different bandwidth were demonstrated both theoretically and experimentally,and an optimization ratio of pulse width to crystal thickness was given.
     基于光谱相位相干直接电场重建法(SPIDER)测量飞秒激光脉冲的原理,建立了 BBO晶体光谱滤波作用的计算模型,数值模拟了不同参数BBO晶体的视频效率带宽,给出了对于不同宽度的待测脉冲及应选取的BBO晶体的厚度范围,并在实验中给予验证。
短句来源
     Based on the spectral phase interferometry of direct electric field reconstruction(SPIDER),the spectral phase of femtosecond laser pulse is reconstructed with numerical simulations. The thickness of crystal 、the time delay τ between the tested pulse replicas、the frequency shear Ωare analyzed about how to choose their values.
     基于光谱相位相干直接电场重建法(SPIDER)测量飞秒激光脉冲的基本原理和重构相位的反演算法,数值模拟了SPIDER技术重构飞秒脉冲相位的过程,分析了非线性晶体、时间延迟τ、光谱剪切量Ω的选取原则。
短句来源

 

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      direct electric field
    A 30 V direct electric field was applied to a contaminated soilfrom a chlor-alkali plant for 182 days.
          
    The new effect demonstrated in this paper is that the transverse electric field efficiently 'locks' nonthermal ions in the RCS, thus allowing their acceleration by the direct electric field in the RCS.
          
    Thus, wave acceleration is subject to the same limitations as direct electric field acceleration.
          
    These in turn can only come from direct electric field acceleration since it is shown that ion-acoustic waves excited by the primary current cannot amplify electron plasma waves.
          
    Direct electric field acceleration is shown to involve significant heating.
          
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    In this paper, the theoretical formulae of primary arm spacing z_1 and the initial secondary arm spacing z_(20) were proposed with the consideration of the effect of direct electric field. To verify the formulae the experiments were carried out for Sn—12wt%Bi alloy under the unidirectional solidification condition. The experimental value exhibits the same tendency as the theory value. But for z_1 the fomer are a little smaller than the latter; for z_(20), the former are a little bigger than the latter....

    In this paper, the theoretical formulae of primary arm spacing z_1 and the initial secondary arm spacing z_(20) were proposed with the consideration of the effect of direct electric field. To verify the formulae the experiments were carried out for Sn—12wt%Bi alloy under the unidirectional solidification condition. The experimental value exhibits the same tendency as the theory value. But for z_1 the fomer are a little smaller than the latter; for z_(20), the former are a little bigger than the latter. The reason for this is that the selected physical property values of the alloy are not precise.

    本文提出了在直流电场作用下一次枝晶间距Z_1和最初形成的二次枝晶间距Z_(20)的理论表达式,并在定向凝固条件下用Sn—12%Bi合金进行了实验验证。实验与理论得到了定性的吻合。对Z_1,理论值比实验值大一些,对Z_(20),理论值则比实验值小一些。分析表明,这是由于所选物性值不准确造成的。

    The induction of electroless Ni P deposition on copper substrate by virtue of the external direct electric field was investigated. The data acquisition was carried out by microcomputer. The experimental results indicate that: (1) The potential of copper substrate has to be equal to or more negative than the critical induction potential -0.520 V(vs SCE), otherwise the deposition of electroless nickel would not occur; (2) The critical induction time depends on the surface state of the sample, the solution...

    The induction of electroless Ni P deposition on copper substrate by virtue of the external direct electric field was investigated. The data acquisition was carried out by microcomputer. The experimental results indicate that: (1) The potential of copper substrate has to be equal to or more negative than the critical induction potential -0.520 V(vs SCE), otherwise the deposition of electroless nickel would not occur; (2) The critical induction time depends on the surface state of the sample, the solution and the current density; (3) Surface coverage of 12% is enough for the substantial initiation of the electroless deposition, if the newborn nickel atoms are deposited in the form of monolayer.

    采用计算机采样等实验手段,研究了外电场在诱发非催化活性金属铜表面产生化学镀镍过程中的作用。研究结果表明,当铜基体电位等于或低于临界诱发电位时才有可能引发化学镀自催化沉积。试样的表面状况、溶液条件和通电电流密度都对临界诱发时间有影响。铜基体达到临界诱发电位-0.520V(vsSCE)和临界诱发时间是引发化学镀镍成功的必要和充分条件。计算表明,新生的镍原子如果以单原子层覆盖铜表面,其覆盖率大约为12%就足以诱发化学镀镍自催化过程

    Based on laboratory data, such as, the internal current, feature curve of charge and discharge current versus time, and decomposition potential of rock sample, the reaction resistance of the interface between solidstate graphite ore and liquid phase has proved to be very high; so that when an ordinary stable direct electric field was applied, the current of eletrochemistry reaction is tending towards zero, and the polarization voltage over the interface between solidstate and liquid phase is less than...

    Based on laboratory data, such as, the internal current, feature curve of charge and discharge current versus time, and decomposition potential of rock sample, the reaction resistance of the interface between solidstate graphite ore and liquid phase has proved to be very high; so that when an ordinary stable direct electric field was applied, the current of eletrochemistry reaction is tending towards zero, and the polarization voltage over the interface between solidstate and liquid phase is less than hundred millivolts which is too small to reach the decomposition voltage for hydrogen and oxygen separation. The internal current of graphite ore is tending little, so that it plays a role of excluding current within a stable polarization electric field, and it is equivarlent to a high resistivity body.

    根据岩矿石标本的内电流、充放电时间特性曲线、分解电势等实验数据资料,论证了石墨矿固液相界面反应电阻充分大。在野外常规的稳定直流电场作用下,固液相界面的极化电势不过数百毫伏,未能达到析出氢气、氧气的分解电势值,石墨矿体内部传导电流很小,因而在稳态极化电流场中,起到了排斥电流的作用,它可与高阻地质体等效。

     
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