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饱和层
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  saturated layer
     Intermadiat cover can be divided into upper saturated layer,middle working layer and lower new material layer during the working,the mechanism is ions exchange proved by the fact that mass density of NH + 4 is negative correlation to the those of cations such as Ca 2+ and Mg 2+ .
     填土层在工作过程中形成了上部饱和层、中部工作层、下部新料层的三个部分,吸附机理以置换Ca2+,Mg2+等阳离子为主的离子交换作用,出水中NH+4与Ca2+,Mg2+等阳离子呈现显著的负相关关系。
短句来源
     The unsaturated layer and saturated layer reed bed followed by a horizontal flow reed bed and conventional vertical flow reed bed followed by the same design horizontal flow reed bed were choosen as comparison.
     采用改进的非饱和与饱和层结合的垂直流湿地及水平流湿地组合工艺,与传统的垂直流湿地硝化与水平流湿地反硝化的脱氮工艺对比研究;
短句来源
     The results show that the higher lightning probability is associated with the higher convective energy, the more instable air, the lower saturated layer, or the smaller vertically wind shear.
     结果表明:对流能量越高、不稳定条件越好、饱和层高度越低、水汽越多、垂直风切变越小,闪电发生的可能性越大、次数越多;
  “饱和层”译为未确定词的双语例句
     Subsequently, we carry through steady and non-steady numerical calculation under steady environmental condition and obtain the temperature field, moisture field, and evaporation rate field in porous soil.
     并在恒定环境条件下进行了稳态与非稳态的数值计算,得到了湿分分层土壤中的温度场、湿度场以及内部蒸发量场,分析了干饱和层对土壤内部热湿迁移规律的影响。
短句来源
     To the problem of tow-phase flow in porous media, the traditional mathematic models are analyzed and discussed.
     与目前所能够得到的文献资料相对比,所得计算结果有较好的吻合性,从而说明了本文理论模型计算的准确性,并得出结论,在多孔介质两相流中考虑非饱和层是必要的。
短句来源
     The effect of dry-saturated layer on the heat and mass transfer in soil is also analyzed. The numerical simulations show that: Starting from the occurrence of dry soil layer (DSL), water evaporation front moves from soil top surface to the interface between unsaturated layer and dry layer.
     数值模拟的结果显示:出现干饱和土壤层后,水分蒸发锋面从土壤表面下移至干饱和层与非饱和土壤层界面处,水分蒸发强度明显降低,土壤温度显著升高,干饱和层厚度增长缓慢。
短句来源
     A systematic technology has been developed to recover residual oil in maturing field by processing oil-water saturated layers,which is based on the theory of raising filtration drag in water flood area with polymer dispersion system.
     为采出油田开发后期的残余油,研究开发出一套对油水饱和层进行处理的工艺,它是基于用聚合物分散体系增大水淹区渗透阻力。
短句来源
     According to the characteristics of the water profile of ponding infiltration in loess soil,the authors proposed an improved GreenAmpt model,in which the original saturated zone and transient region were combined into a single saturated region,while the gradient of water content in the unsaturated zone was treated as the gradient of soil suction exerting over the upper surface of the saturated region.
     本文根据黄土积水入渗的土壤水分剖面变化特征,仅将饱和层与传导层统一视为饱和区,而将非饱和湿润层的含水量变化视为施加于饱和区的吸力势,从而在具有"活塞模型"之称的Green Ampt入渗模型基础上,推导得出了适用于黄土区的积水入渗模型。
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  相似匹配句对
     Gout Material Research On The Saturated Waterbearin Sand Layer
     饱和含水砂注浆材料研究
短句来源
     Grouting New Technology in Saturated Aquifer of Sand Stratum
     饱和含水砂注浆的新技术
     (6)phonological tier.
     (6)音系
短句来源
     Multi-Layer Switch
     多交换技术
短句来源
     Preparation methods of hydrogenated nitrile rubber
     饱和丁腈橡胶的制备
短句来源
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  saturated layer
In the process of evaporation, an interface between the upper water-saturated layer and the lower layer containing an air-vapor mixture is formed.
      
It is shown that changes in the transport current amplitude and in the number of defects lead to a change in the energy liberation mechanism: hysteresis energy losses are replaced by the losses in the saturated layer.
      
The interface evolution during the evaporation of a liquid from a saturated layer of porous medium (paper) was experimentally studied using spectral analysis of intensity fluctuations of a laser radiation scattered by the layer.
      
These phenomena are more pronounced for shear waves, whereas the distortions of the longitudinal waves propagating through the water-saturated layer are relatively weak.
      
At the initial stage of the oxidation at 400 °C and for oxidations at high temperature (800 °C) there appear moiré patterns which have been referred to the oxygen-saturated layer occurring on zirconium.
      
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In this paper a filter-compositing metho,d is used to determine the ave-rage structure and properties of four medium-scale wave disturbances ob-served during the period in mei-yu season. The conclusions are given as follows:

本文利用滤波-合成方法研究了梅雨涡旋的结构特征。指出,梅雨涡旋虽然是对流层中低层天气系统,然而由它引起的上升运动却是非常强的,涡旋上空直至200毫巴为深厚饱和层,涡旋中心及其南侧为水汽通量汇区,这些特征是梅雨涡旋易产生区域性大暴雨的主要原因。此外,根据简单的动力学讨论认为梅雨涡旋的发生、发展和维持与惯性重力波不稳定发展有关,其能量主要来自凝结潜热。

The isotopic exchange rate between a CO~(18) saturated Pt(111) surface and 10~(-8) to 10~(-6) torr of CO~(16) gas has been studied using temperature programmed desorption over the 298 to 343 K temperature range. The exchange rate is first order in CO~(18) coverage and 0.43 order in CO~(16) pressure. The activation energy for exchange is only about one half the heat of adsorption for a vacuum saturated surface (△H_(ex)~14kcal/mole). The exchange mechanism appears to invole adsorption of gas phase CO~(16) into...

The isotopic exchange rate between a CO~(18) saturated Pt(111) surface and 10~(-8) to 10~(-6) torr of CO~(16) gas has been studied using temperature programmed desorption over the 298 to 343 K temperature range. The exchange rate is first order in CO~(18) coverage and 0.43 order in CO~(16) pressure. The activation energy for exchange is only about one half the heat of adsorption for a vacuum saturated surface (△H_(ex)~14kcal/mole). The exchange mechanism appears to invole adsorption of gas phase CO~(16) into a weakly adsorbed high coverage intermediate state. All the adsorbed CO molecules in this high coverage state are equivalent (rapid exchange occurs). Desorption of CO~(18) from the high coverage intermediate state completes the overall exchange reaction. The desorption step appears to be rate limiting and results in the first order behavior and observed activation energy.

本文用程序升温脱附(TPD)研究了Pt(111)面上化学吸附Co~(18)与气相CO~(16)之间的交换反应动力学。实验结果表明,在10~(-8)到10~(-6)乇的Co~(16)压力和298到343K的温度范围内,交换反应速度对Co~(18)的复盖度为一级,对CO~(16)的气相压力为0.43级,交换反应的活化能△H_(ex)=14千卡/克分子,该值仅为在真空条件下CO饱和吸附热的1/2。我们推测在交换反应条件下,由于气相CO分子的存在,导致在CO/Pt(111)表面形成过饱和CO吸附层。由于CO分子在这种过饱和压缩层中,受到近邻分子较强的短程排斥作用,而导致吸附热下降。交换反应的机理涉及气相CO~(16)分子进入这种弱成键态,在过饱和层中所有的吸附CO分子都是等价的,并处于弱成键态。我们认为这种过饱和层中弱成键态CO的脱附是交换反应的控制步骤,这就合理地解释了交换反应具有较低的活化能以及对CO~(18)复盖度为一级动力学的实验结果。由于过饱和复盖度随气相CO压力的增加而增加,可以设想增加CO~(16)压力可增加CO~(16)碰撞表面的速率,但同时也会减少空的吸附位,这两者综合作用的...

本文用程序升温脱附(TPD)研究了Pt(111)面上化学吸附Co~(18)与气相CO~(16)之间的交换反应动力学。实验结果表明,在10~(-8)到10~(-6)乇的Co~(16)压力和298到343K的温度范围内,交换反应速度对Co~(18)的复盖度为一级,对CO~(16)的气相压力为0.43级,交换反应的活化能△H_(ex)=14千卡/克分子,该值仅为在真空条件下CO饱和吸附热的1/2。我们推测在交换反应条件下,由于气相CO分子的存在,导致在CO/Pt(111)表面形成过饱和CO吸附层。由于CO分子在这种过饱和压缩层中,受到近邻分子较强的短程排斥作用,而导致吸附热下降。交换反应的机理涉及气相CO~(16)分子进入这种弱成键态,在过饱和层中所有的吸附CO分子都是等价的,并处于弱成键态。我们认为这种过饱和层中弱成键态CO的脱附是交换反应的控制步骤,这就合理地解释了交换反应具有较低的活化能以及对CO~(18)复盖度为一级动力学的实验结果。由于过饱和复盖度随气相CO压力的增加而增加,可以设想增加CO~(16)压力可增加CO~(16)碰撞表面的速率,但同时也会减少空的吸附位,这两者综合作用的结果是导致交换速度对气相CO~(16)压力的依赖关系较弱的原因(仅为0.43级)。在10~(-8)到10~(-6)乇CO~(16)压力范围内,交换速度对CO~(16)压力保持0.43级不变,这表明在CO~(16)压力高达10~(16)乇时Pt(111)表面的吸附位尚未完全被CO复盖。

Groundwater is contaminated as a result of an-thropo- genically induced perturbation of physical,chemical and biological processes occurring from soil surface through the unsaturated zone to subterranean water-bearing layer .The management of water and its dissolved organic contaminants from soil surface through the unsaturated zone to groundwater supplies requires an accurate conceptual understanding and a quantitative description of all relevant physical,chemical and biological processes and properties in...

Groundwater is contaminated as a result of an-thropo- genically induced perturbation of physical,chemical and biological processes occurring from soil surface through the unsaturated zone to subterranean water-bearing layer .The management of water and its dissolved organic contaminants from soil surface through the unsaturated zone to groundwater supplies requires an accurate conceptual understanding and a quantitative description of all relevant physical,chemical and biological processes and properties in the unsaturated zone.some conceptual problems and opportunities for modelling un-saturated zone water flow and solute transport processess are reviewed.Alternatives to classical modelling approaches are also outlined

地下水有机污染是由人类活动引起的各种物理、化学和生物等干扰过程造成有机污染物自土壤表面迁移至地下含水层的结果。为了解有机污染物如何自土表经过不饱和层(包气带)进入含水层,需要对不饱和层中所进行的各种物理、化学和生物等过程进行较准确的定量描述。本文就不饱和层和含水层中水分和有机污染物迁移建模的一些基本概念和方法进行综述,并列举了一些经典的和新颖的建模方法。

 
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