查询词典 porous

On the basis of the conservation equation of continuous medium and in combination with mechanics of fluid through porous media and the heat transfer theory in porous media, conservation equations in porous media (continuous equation, momentum equation and energy equation ) are derived, When constructing the downhole temperature model, heat transfer in a wellbore is considered as the heat transfer in a vertical tube, the flow in a wellbore considered as sufficiently parallel flow, heat transfer in injection zones considered as heat conduction and convection in porous media, the flow in injection zones considered as flow through porous media, heat transfer in adjacent rocks considered as heat conduction in porous media.

在建立井下温度场模型时，把井筒的传热看作是竖直圆管中传热问题，把井筒的流动看作是充分发展的层流流动；把注入层中的传热看作是多孔介质中导热和对流的传热问题，把注入层中的流动看作是渗流；把围岩中的传热看作是多孔介质中导热问题。

It is shown that the of the porous carbon towards (I_2) depends on the pore volume of the porous carbon; the adsorption of the porous carbon towards phenolic compounds depends on the density of carboxylic and lactonic groups on the surface of the porous carbon; the adsorption of the porous carbon towards Cr d...

发现多孔炭对酚类化合物及Cr的吸附以化学吸附为主，其中对酚类化合物的吸附由羧基与内酯基的表面密度合量决定，对Cr的吸附由表面官能团中羧基和内脂基含量的合量决定；多孔炭对I2的吸附以物理吸附为主，由孔容决定。

For that, using Darcy law, ideal gas state equation, mass conservation law and moment equation, the paper presents the pressure distribution equation in the porous media and lubricated film including hydrostatic and aerostatic porous thrust bearings (circular pad and rectangular pad), hydrostatic and aerostatic porous journal bearings and hydrostatic and aerostatic porous spherical bearings.

为此，本文利用Darcy定律、理想气体状态方程、质量守恒定律、动量方程以及相应的边界条件，给出流体在多孔质内部和流体薄膜内部压力分布方程，结果表明这两个流动域内部流体压力分布方程是相互耦合的。

The water transport efficiency in ring-porous species vessels is higher than that in diffuse-porous species and none- porous species, but ring-porous species vessels more easily occur embolism.

环孔材树种导管比散孔材导管和无孔材管胞输水效率高，但它比后两者更容易发生空穴和栓塞。

Maximum value of ring-porous species-Fraxinus mandshurica , Fraxinus mandshurica , Phellodendron amurense, Quercus mongolica, semi ring-porous Juglans mandshurica, diffuse-porous Betula platyphylla, Tilia amurensis and non-porous Pinus sylvestris, Pinus koraiensis were as following: 430.53, 516. 36, 234. 00, 625. 93, 945. 83, 199. 49, 507. 93, 142. 43, 286. 21cm〓cm〓h〓 in diumal course during the growing season, The sap flow persisted after leaf senescence until the mid-October.

在生长季中环孔材水曲柳、水曲柳、黄波罗、蒙古栎树干液流密度日最大峰值分别为430.53（8月末）、516.36（9月中旬）、234.00（7月下旬）、625.93 cm〓cm〓h〓（9月初）；半环孔材胡桃楸为945.83 cm〓cm〓h〓；散孔材白桦和紫椴分别为199.49（9月上旬）、507.93 cm〓cm〓h〓（8月上旬）；针叶材樟子松、红松分别为142.43（7月中旬）、286.21cm〓cm〓h〓（7月下旬）。

The results show that the porous pipe quantity, head loss and hydraulic deviation rate of the porous pipe would increase while water head in entrance, pipe length and porous pipe permeability increasing. The head loss mainly concentrated on the top half of the porous pipe.

结果表明，随着进水口压力、管长和微孔渗灌管透水性能的增加，微孔渗灌管水流量、沿程的水头损失和水力偏差率增大，且水头损失主要发生在微孔渗灌管靠近进水口的前半段。

In the present invention, platinum-carbon catalyst, perfluoro sulfonic acid resin solution and absolute ethyl alcohol are uniformly mixed under ultrasonic conditions; mixture is uniformly smeared on a micro-porous layer of carbon cloth or carbon paper in a brushing or printing method, and a traditional Pt/C gas porous electrode is obtained after drying; silicon oil is adopted to infiltrate into pores of a catalyst layer and a diffusion layer of the traditional Pt/C gas porous electrode, and then the ordering anti-drowning gas porous electrode is obtained after drying.

本发明是将铂碳催化剂、全氟磺酸树脂溶液和无水乙醇在超声波条件下混合均匀，采用涂刷或印制的方法将混合物均匀涂布到碳布或碳纸的微孔层上，干燥后制得传统Pt/C气体多孔电极；然后将硅油渗入到传统Pt/C气体多孔电极的催化层和扩散层孔隙中，干燥后制得有序化抗溺水气体多孔电极。

An energy-accumulating phase-change haydite is composed of light-weight porous haydite, organic phase-change substance adsorbed by said porous haydite and polymer-base composite coated on the surface of said porous hay dite.

该相变储能陶粒以轻质多孔陶粒为基体，其内部吸附、储存有有机相变物质，外部包覆有聚合物基复合材料膜层。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system. Besides, the paper puts forward the 3D spatial dispersion method of irregular hexahedral unit based on GIS to guarantee to the greatest degree the uniqueness of the stratum types among the dispersed units and improve the precision of 3D spatial dispersion.

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基於GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基於GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

By analyzing the problem of hydrological 3D spatial dispersion in 3D finite differential numeric simulation of porous groundwater flow, as well as discontinuous spatial distribution and asymmetric thickness of porous aquiferous strata and partitive groundwater stratum, the paper presents the GIS-based technique of 3D spatial dispersion of porous aquiferous stratum system .

分析了目前孔隙地下水流三维有限差分数值模拟中对含水层系统三维空间离散存在的问题，针对自然界孔隙含水层与隔水层空间分布的不连续性与厚度的不均匀性，研究了基于GIS的孔隙含水层系统三维空间离散实现的技术路线，提出了基于GIS与不规则六面体元的孔隙含水层系统的三维空间离散方法，最大限度地保证了离散体元中含水层类型的单一性，提高了孔隙地下水流模拟模型三维空间离散的精度。

I think people in this lifetime in a rebirth.

我觉得人在这一生里其实也在轮回。

He had to tie her hands together.

他不得不把她的双手绑在一起。