扩散率,diffusivity
1)diffusivity[difju"siviti]扩散率
1.The results showed that, with soil amendments application, saturated hydraulic conductivity increased; unsaturateddiffusivity was also affected.通过对试验数据进行初步分析后得出 :加入土壤结构改良剂后 ,土壤饱和导水率有所提高 ;各处理的非饱和扩散率与对照相比 ,施加土壤结构改良剂的处理 ,在水平土柱试验中 ,远水端同一距离处土壤含水率要低于对照处理的含水率 ;土壤结构改良剂具有良好的吸水和保水性能 ,使得土壤的持水能力增强。
2.The unsaturated waterdiffusivity increased greatly with the rock fragment content increasing,and was positive linear to the soil water content.试验结果表明,土壤中砂石含量显著降低了湿润锋推移速度,砂石含量和粒径对土壤水分累积入渗量的减少均有不同程度影响;土壤水分扩散率值随着砂石含量增多而增大,且与土壤含水率呈正线性关系,但砂石粒径对其扩散率的影响并不显著。
英文短句/例句
1.Measurements of Thermal Conductivity and Diffusivity of Loose Coal Using a Hot-Wire Method热线法同时测松散煤体导热系数及热扩散率
2.Test method for thermal diffusivity of hard metal (carbide)GB/T11108-1989硬质合金热扩散率的测定方法
3.In materials marked by low thermal diffusivity, the absorption is good.热扩散率低的物质吸收性好。
4.The thermal conductivities and thermal diffusivities of the material must be known.必须知道各种材料的热导率和热扩散率。
5.Study on the Thermal Diffusivity and Thermal Conductivity by PTR Method;PTR方法对材料热扩散率和热导率的研究
6.Study on the Sensitivity of thermal diffusivity measurement with the Mirage Effect用蜃景效应测量热扩散率时精度的研究
7.Study on Measurement of Thermal Diffusivity of Opaque Material by PTR Method;不透明材料热扩散率PTR测量方法的研究
8.Design of the Structure for On-Line Determination of Thermal Diffusivity of Polysilicon Thin Films;多晶硅薄膜热扩散率在线测试结构的设计
9.diffuse-field response of microphone传声器扩散声场频率响应；传声器扩散场响应
10.Option Pricing with Interest Rate and Stock Have Jump-diffusion Action;利率、股票有跳跃扩散行为的期权定价
11.The Nonparametric Estimation of Time-Dependent Diffusion Models;时间相依利率扩散模型的非参数估计
12.THE PRICING OF OPTIONS ABOUT FOREIGN EXCHANGE WHOSE RATES ARE DRIVED BY JUMP-DIFFUSION PROCESSES;跳跃扩散型汇率过程的外汇期权定价
13.Thermal conductivity of carbon nanotube:From ballistic to diffusive transport碳纳米管的热导率:从弹道到扩散输运
14.Return Fluctuation of RMB Exchange Rate Based on Jump-diffusion Process基于跳-扩散过程的人民币汇率收益率波动模型
15.And comparing with radiation heating, atom diffusion velocity at interface quickened.与辐射加热相比，接触面处原子扩散速率加快。
16.New NMR Methods for Determination of Self-Diffusion Coefficient and Relaxation Times;自扩散系数和弛豫速率测定的NMR新方法研究
17.Pricing for a Jump-Diffusion Foreign Exchange Options with Interest Rate under Vasicek Model;利率服从Vasicek模型的跳跃扩散外汇期权定价
18.Distributions of the Ruin Probability for the Risk Process Perturbed by Diffusion;带扩散干扰风险模型中破产概率分布的研究
相关短句/例句
dispersal rate扩散率
1.The positive equilibrium is stable if thedispersal rate is small.本文证明了一类带有扩散的捕食与被捕食Ｌｏｔｋａ－Ｖｏｌｔｅｒｒａ模型的如下性质：当该模型存在正平衡点时，它的一切正解是强持续生存的；当扩散率较小时，该系统的正平衡点是稳定的；当扩散率增大且位于某一开区间内变化时，该系统的正平衡点是不稳定的，而且分支出唯一的小振幅空间周期解；当扩散率继续增大时，该系统的正平衡点又变为稳定的。
3)diffusion rate扩散率
4)diffusion[英][di"fju:??n][美][d?"fju??n]扩散率
1.In this paper, the stabilities of boundary equilibrium and positive equilibrium of two_species Ayala competitive systems with two differentdiffusions are disscused, and dynamical behaviors of species is obtained.讨论了具有不同扩散率的两种群Ａｙａｌａ竞争系统之边界平衡点和正平衡点的稳定性，得出了相关种群动力学行为的结论·同时对有扩散和无扩散时种群的动力学行为进行了比较，说明了扩散对种群持续生存的影响
5)thermal diffusivity热扩散率
1.The measuringthermal diffusivity of film materials by laser photoacoustic backing exciting technique;利用激光光声技术测量薄膜材料的热扩散率
2.Theoretical study onthermal diffusivity measurement of semi-transparent materials by the flash method;闪光法测量半透明材料热扩散率的理论研究
3.Measurement ofthermal diffusivity of SiO_2 thin films using AC calorimetric method;交流量热法测量SiO_2薄膜的热扩散率
6)diffusion rate扩散速率
1.Effect of the dyebath′s flowage on dyesdiffusion rate in dyeing processes;染色过程染液流动对染料扩散速率的影响
2.It is difficult to distinguish the kinetic reaction rate from thediffusion rate of SO2 and O2 molecules during the Dry FGD reactions.区分氧化钙脱硫反应中的化学反应动力学速率与二氧化硫、氧气分子的扩散速率是一个难题。
3.The effects of many factors ondiffusion rate are also studied.通过对影响毛细管扩散微滴定扩散速率各项因素分析 ,在相同的试剂贮液器液位高度和搅拌速率的情况下 ,扩散速率只与毛细管的内径、长度等特性有关 ,而与待测样品溶液初始浓度、滴定反应类型无关 ,为计时法计量微滴定试剂用量提供了依据 。
延伸阅读
扩散率分子式：CAS号：性质：在单位浓度梯度下，在单位时间内扩散过单位面积的物质量。单位为g/s·cm2。亦称扩散率。
