单语范例（未经PONS编辑处理）
Slate can have a pleasing texture but is slightly porous and prone to delamination.
en.wikipedia.org The organic remains of the fossil are porous and hygroscopic, while the oil-containing rock is not.
en.wikipedia.org The foundation of the 2.5m ft pallisade was porous sandstone.
en.wikipedia.org It also operates a dark room for wet etching, electroplating and porous silicon fabrication.
en.wikipedia.org Oil and gas trapped within the porous rock unit migrate to a high point in the structure because of their low density.
en.wikipedia.org