查询词典 permeability

RESULTS The calculated human skin permeability coefficients of 22 model drugs in vitro or the R values (R=absorbed/unabsorbed) of 17 drugs in vivo are in good agreement with their observed values.

结果 22个模型药物离体透过人皮肤的渗透系数和17个模型药物在一定时间内在体透过人皮肤的透过比的计算值和实测值均相符。

N28-1 wellblock is a typical unconsolidated sandstone pool of high permeability, high saturation pressure and high viscosity.

N28-1井区是典型的高渗透、高饱和压力、高粘度的疏松砂岩油藏。

On the base of large quantitative test, using coal petrography and organic geochemical data, the source of oil and gas in the coal-measures is analyzed. And it is concluded that the area's Yan'an group coal-bed has a low potential of oil production, and the oil and gas contained in the coal-measures and superjacent strata comes from underlying Upper Triassic Yanchang group strata. After a series of parameters of coal seam and surrounding rocks are tested, gas formation, storage, preservation, permeability of the coal-rock seam are analyzed and evaluated.

本文在大量测试工作基础上，利用煤岩学与有机地球化学资料，分析了煤系油气的来源，认为本区延安组煤系煤层生油潜力差，煤系及其上覆地层所含油气为下伏上三叠统延长组源岩所生，油气主要通过迭置的砂体、不整合面、构造裂缝等自下向上运移进入煤系；通过对煤层及围岩一系列物性参数的测试，分析与评价了煤岩层的生、储、盖、渗性能与可抽放性，得出主采4_(-2)号煤层属中等储集、低渗透层，围岩封闭性差，渗透性高，煤层瓦斯含量低，而顶板砂岩瓦斯含量高，为采面瓦斯涌出的主要来源。

In this paper, in the process of modified isochronal test , abnormal phenomenon that transient test production is greater than absolute unresisting flow rate during producing test in low permeability reservoir Changqing oilfield.

针对长庆低渗透气藏进行修正等时试井过程中出现试采瞬时测试产量大于绝对无阻流量的异常现象，在明确气井瞬时测试产量与其绝对无阻流量概念的基础上，通过对气井绝对无阻流量获得过程及气井绝对无阻流量计算结果影响因素的分析，在理论上证实了气井瞬时测试产量大于其绝对无阻流量的可能性，从而解释了现场测试过程中出现的特殊现象。

With the consideration of the spatial variation of physical parameters of soft clay, the probabilistic characteristics of the one-dimensional average degree of consolidation of soft clay was studied and its sensitivity of variance to permeability, void ratio and compression coefficient of soil was also analyzed.

在考虑岩土参数空间变异性的情况下，对软粘土地基一维固结平均固结度的概率特征进行了研究，分析了平均固结度的概率特征对渗透系数、孔隙比和压缩系数三参数变异性的敏感性，进行了岩土参数分布类型对平均固结度影响的正交试验，并根据试验结果进行了方差分析，为进一步开展多层地基固结的可靠性分析打下了基础。

OBJECTIVES: To evaluate airway vascularity, vascular permeability and expression of vascular endothelial growth factor in early asthma deterioration induced by ICS back-titration.

目的：评价由气道ICS 反滴定诱导的哮喘恶化中的血管分布、血管通透性和血管内皮生长因子表达。

Local substances released by injury produce vasodilatation and increased small vessel permeability.

电损伤释放的局部物质引起血管扩张和增加小血管的通透性。

Based on one new preservation solution which is made from carboxymethyl chitosan and sucrose for cut Gerbera flower , an effective research of preservative effect for extending vase life of cut gerbera flower is proposed in this paper, which is by exploring the percentage of moisture, pH and relative permeability of velamen to the petal organizations.

采用羧甲基壳聚糖溶液和蔗糖溶液配制成保鲜液保鲜非洲菊切花，通过对花瓣组织含水率、pH值和膜相对透性的测定，研究保鲜液对对非洲菊鲜切花瓶插寿命的影响。

Changes in blood flow are secondary to a relaxation of small arteries and arterioles, whilst changes in microvascular permeability, leading to inflammatory edema formation and cell accumulation, are mediated via changes that occur at the postcapillary venule level.

血管活性肽分子及其相关肽段可以内分泌的方式发挥循环激素的作用，还可以旁、自分泌的方式，通过其靶细胞表面的G蛋白偶联受体，在血管局部发挥其调节血管舒缩、细胞增殖迁移和分泌等复杂的生物学作用。

As the concentration of Verticillium dahliae toxin increasing , the changes of the permeability of cells in callus and leaf were increasing continually .

随毒素浓度的增加，茄子叶片和愈伤组织的细胞膜透性均持续上升。

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。