| 摘要 |
<p>An elongated conduit (12) for conveying or containing liquid is provided comprising a flexible membrane (18), wherein the membrane (18) is disposed in substantially adjacent relationship with a compressible elastomeric material (14), the compressible elastomeric material (14) being supported by a permeable rigid support member (26). The membrane surface, adjacent to a second surface or the compressible elastomeric material, has a surface area exceeding the greater of (i) the area of the second surface when no liquid is in the conduit, and (ii) when the compressible elastomeric material is compressed due to freeze expansion.</p> |
