查询词典 permeability

The silicone rubber membrane used in SRMBR is a polymer-made non-porous material. It is hydrophobe and non-permeable to inorganic salt, and has the high selective ethanol permeability. Compared to the conditional separation technology, the pervaporation through SRM has the advantages of low-cost and low-pollution, especially applicable to separating volatile matter from organic matter-water system or organic-organic matter system.

其中的硅橡胶膜作为一种均相聚合物材料无孔膜，具有不透无机盐成分、疏水和对乙醇有较高选择透过性等特点；与传统分离技术相比，硅橡胶膜的渗透蒸发分离过程具有低能耗、污染少等优点，尤其适用于在有机物-水或有机物-有机物体系中分离挥发性有机物组分，现已用于发酵下游产物分离处理的试验研究中，并取得初步成效。

Cell membrane permeability in hypertonic,hypotonic and isotonic solution were studied.

验证性强，推论性少；不能分析推断极性大小、电性对渗透性的影响。

The results indicate that the different thermal expansions and elastoplastic properties and distributed randomness of various mineral particles composed of oil shale will lead to the nonuniformity of thermal field, deformation field and stress field in heating process, which makes the particles of oil shale deform incompatibly: and the release of product pyrolysis results in irreversible damages of oil shale material and structure. These are the main reasons for the thermal fracture of oil shale. When oil shale is heated through thermal conduction, temperature transfers slowly, so the spacing between heating well and production well should not be kept too long. When difference exists in oil shale reservoir's properties, heating well should be chosen in the high conductivity region. Oil shale's stratification is vital for developing permeation zone in in-situ retorting. Oil shale will generate additional expansion force as it reaches its pyrolysis temperature, and stratification will be cracked first, so the oil shale stratification should be utilized to enhance its permeability.

研究结果表明：组成油页岩各种矿物颗粒热膨胀和弹塑性性质的不同及其分布的随机性，导致油页岩加热过程中温度场、变形场和应力场的非均匀性，使得油页岩颗粒间变形不协调和油页岩热解产物释放引起油页岩材料与结构性能发生不可逆的劣化损伤，这是油页岩发生热破裂的主要原因；热传导方式加热油页岩，温度的传递比较缓慢，加热井和生产井的间距不宜过大，对油页岩储层性质存在差异时，注热井应选择较高热导率的区段；油页岩的层理对油页岩地下原位开发形成渗透带至关重要，油页岩达到热解温度会产生附加的膨胀力，首先在层理处开裂，应充分利用油页岩层理赋存条件改造其渗透性。

And after analyzing the heterogeneity of sand body, point the minor channels, especially, have important influence on the intraformational oil-flooding direction, forming and distribution of remaining oil because of their function as barrier, breaking fluid and poor permeability in fluvial sand body.

通过非均质性研究，进一步揭示了单一河道砂体内部非均质性，特别是次分流河道砂体的分布，在河道砂体内起到遮挡、阻流、特低渗透等作用，对层内水驱油方向、剩余油形成与分布具有重要影响。

No significant changes were observed in nifedipine group.Conclusion The benefit of fosinopril on proteinurin was due to the modification of intrarenal circulation or the improvement of glomerular permeability.

结论福辛普利改善蛋白尿作用不依赖于动脉血压的有效降低，其可能机制是肾内血流量或肾小球通透性的改变所致。

Detection and description of lithological parameters of reservoir, particularly, reservoir parameters (porosity permeability and saturation), are the fundmental problems of reservoir Geophysics, therefore, it is required to develop direct and inversive theorey of reservoirs.

二、探测和描述储集层的岩性参数，特别是油储参数是油储地球物理学的基本课题，这就要求发展储集层的地震正、反演理论。

The predominant reservoir of Qom Formation in Kashan area is marine carbonate rock, most of whom is bioclastic limestone. The reservoir is the fracture-pore reservoir with low porosity and low permeability.

Kashan地区主要储集层为Qom组海相碳酸盐岩，它是一种裂缝-孔隙型储层，属于低孔低渗储层，岩石表现为脆性。

Objective To study the effects of pH on the nasal permeability of ketamine hydrochloride KET?

摘要目的研究pH值对盐酸氯胺酮经离体家兔鼻粘膜渗透性的影响，为经鼻腔给药的处方设计和优化提供依据。

The stretch and the curving spot use the permeability to make the law , the elasticity are very strong , bring the more free kinesthesis !

产品名称彩色护腕常规尺寸11*颜色蓝色成分晴棉，涤纱产品说明拉伸和弯曲部位采用透气性做法，弹性很强，带来更自由的运动感觉！

Gas permeability test suggests that the gas transport into the membranes is governed by Knudsen diffusion mechanism.

气体渗透实验表明气体通过膜孔的扩散由努森机制所控制。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。