查询词典 permeability

Its ester has a good permeability, which can transmit the nutritious elements in the cosmetics deep into the skin. Its ethylic acid can soften cuticle and astringe skin. Its alcoholic compounds can clean and disinfect skin.

其所含的酯类渗透力强，可将营养成分补充到皮肤深处；所含的醋酸可软化皮肤角质层，并有收敛肌肤作用；所含的醇类物质能清洁皮肤，并有杀菌消毒作用。

Autogenetic heat fracturing technique, which replaces fracturing pad fluid with chemicals in order to increase the backflow volume of fracturing fluid and the oil well productivity, is a technique used for remaking the low permeability reservoirs.

自生热压裂技术是应用化学药剂代替压裂前置液以提高压裂返排率和油井产能的低渗透储层压裂改造技术。

This study takes the reservoir of the Kela 2 gas field of the Tariam basin, the western China, as an example for understanding the relationship between the porosity and permeability and autogenetic minerals and textures of the clastic rocks on the vertical depth scale. The secondary pores are essential reservoir space in this gas field, moreover, their origin is closely related to dissolution of the frame grain of plagioclase and the cements of calcite.

本文以克拉2气田储层为研究对象，探讨了该区纵向深度上孔隙度、渗透率与矿物组合、结构上的变化，发现次生孔隙是本区储层的重要储集空间，并且与长石骨架颗粒和方解石胶结物的溶蚀密切相关。

Bitumen is similar to the cement and autogenic clay filled in reservoir pores, and it dramatically reduces reservoir porosity and permeability, increases reservoir heterogeneity and even changes the oil/gas accumulation history at a later stage.

沥青类似于充填在储集层孔隙中的胶结物及自生黏土，使储集层孔隙度和渗透率急剧降低，非均质性增强，甚至可改变后期油气的富集规律。

The results showed that the carbon membranes preoxidized at 460℃,30min,and carbonized at 650℃reached the highest permeability.The permeabilities of H_2,CO_2,O_2,N_2 were 1016.4、710.3、187.8、14.0 Barrer1 Barrer=10~(-10cm~3·cm·cm~2·s~(-1)·cmHg~(-1),respectively.The carbon membranes preoxidized at 460℃,30 min,and carbonized at 850℃reached the highest selectivity.The ideal separation factors of H_2/N_2、CO_2/N_2,O_2/N_2 were 129.2、93.1、21.9、respectively.

结果表明：PPESK前驱体经460℃，30 min预氧化处理，650℃炭化得到的炭膜气体渗透性最佳，H_2、CO_2、O_2、N_2的渗透系数分别达到了1016.4、710.3、187.8、14.0 Barrer1 Barrer=10~(-10cm~3·cm·cm~(-2)·s~(-1)·cmHg~(-1)；经460℃，30 min预氧化处理，850℃炭化得到的炭膜气体选择性最佳，H_2/N_2、CO_2/N_2、O_2/N_2的分离系数分别达到了129.2、93.1、21.9。

The ionomer membrane under the conditions of 20℃ and 0.05 MPa shows better permeaselectivities that the permeability coefficient of CO_2 and CO_2/ N_2 separation factor are 223 Barrer and 65.70, respectively, while CO_2 / CH_4 separation factor is only 14.70. An obvious increase in P_(CO_2) with decreasing pressure difference exhibits a characteristic of facilitated CO_2 transport, which is not disappear and almost unchange after two months. There is no this behavior for N_2 and CH_4. Hence, P_(CO_2) and α_(CO_2/N_2) and α_(CO_2/CH_4) can be enhanced simultaneously.

该离聚体膜显示出良好的CO_2渗透性能，在20℃和0.05MPa压差下，CO_2渗透系数P_(CO_2)和CO_2/N_2分离系数αCO_2/N_2分别高达223 Barrer和65.70.P_(CO_2)和αCO_2/N_2随CO_2压差的降低而明显增大，显示出促进输送特征，这一行为即使在膜放置2个月之后并不消失，渗透分离性能变化不大。N_2和CH_4无此性能，因此在气体压差较低时，P_(CO_2)和αCO_2/N_2、αCO_2/CH_4可同时提高。

The ionomer membrane under the conditions of 20℃ and 0.05 MPa shows better permeaselectivities that the permeability coefficient of CO_2 and CO_2/ N_2 separation factor are 223 Barrer and 65.70, respectively, while CO_2 / CH_4 separation factor is only 14.70. An obvious increase in P_(CO_2) with decreasing pressure difference exhibits a characteristic of facilitated CO_2 transport, which is not disappear and almost unchange after two months. There is no this behavior for N_2 and CH_4. Hence, P_(CO_2) and α_(CO_2/N_2) and α_(CO_2/CH_4) can be enhanced simultaneously.

该离聚体膜显示出良好的CO_2渗透性能，在20℃和0.05MPa压差下，CO_2渗透系数P_(CO_2)和CO_2/N_2分离系数αCO_2/N_2分别高达223 Barrer和65.70.P_(CO_2)和αCO_2/N_2随CO_2压差的降低而(来源：e2b2A2bBC论文网www.abclunwen.com)明显增大，显示出促进输送特征，这一行为即使在膜放置2个月之后并不消失，渗透分离性能变化不大。N_2和CH_4无此性能，因此在气体压差较低时，P_(CO_2)和αCO_2/N_2、αCO_2/CH_4可同时提高。

In this paper, the relationship between the permeability of Pinus koraiensis, Larix dahurica, Betula platyphylla, Populus davidiana and the abstract of wood was studied.

木材渗透与木材加工利用的许多方面有着极其密切的联系，在木材内部流体渗透的难易程度直接影响到木材水热处理的质量。

Results of in vitro transmucosa experiments showed that there was a statistically significant increased permeability of rHV2 over controls after co-administration with PEG-1500, HP-β-CD, bacitracin, sodium caprylate and SDS.

体外透膜实验表明PEG-1500，HP-β-CD，杆菌肽，辛酸钠，SDS等的促进吸收效果较好，体内实验则去氧胆酸钠，PEG-500，苄泽，辛酸钠，HP-β-CD的效果较好。

Using a technique of insoluble salt precipitation, the permeability of endodermal Casparian bands for Cu2+ was investigated in primary roots of soybean Glycine max L.

采用在根内生成有色铜沉淀的方法研究大豆初生根凯氏带对铜离子的通透性。

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。