| 摘要 |
<p>A membrane packet and method of making a membrane packet comprising a plurality of porous membranes, each porous membrane having a first region and a second thinner region, wherein the plurality of porous membranes are stacked, the first regions of the porous membrane being axially aligned and the second regions of the porous membranes being axially aligned, and wherein the second regions of the porous membranes are compressed and comprise a compression bond maintaining the stack of porous membranes as an integral unit.</p> |
