porous barrier

Template Synthesis of Nanostructure Materials in Anodic Alumina Membranes The fabrication of porous anodic alumina template without barrier

多孔铝模板合成纳米材料的研究无阻挡层多孔阳极氧化铝膜板的制备

The deflagration experiments were carried out in the 2000m 3 experimental base to study the increase mechanism of overpressure wave induced by a semispherical porous barrier.

在体积为2000m3的实验基地，进行了半球面筛孔形障碍物对半球形气云爆燃压力的增长机制影响的实验研究。

standard guide for integrity testing of porous barrier medical packages

医用多孔性隔板包装盒完整性试验的标准导则

It has three reservoir sands: the barrier bar of Carboniferous Taiyuan Formation, delta-plain distributary channel sand of Permian Shanxi Formation and fluvial facies channel sand of Lower Shihezi Formation. The reservoir sands are low porous, low permeable and tight.

气田具有石炭系太原组障壁沙坝、二叠系山西组三角洲平原分流河道砂和下石盒子组河流相河道砂3套储集体，储集体为低孔、低渗、致密性储层；