Glass is not porous, it doesn't allow liquid to pass through.

玻璃是不渗透的，它不会让液体漏出。

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After installation, check all the connections of faucet, make sure the Ceramic valve is not leaking, and the valve body is not porous.

安装完毕后，检查水龙头各连接处、陶瓷阀芯是否漏水；

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If the rock is porous — has many small holes in it, like sandstone — water will sink through these holes until it reaches a layer of rock that is not porous.

如果岩石是渗水的——岩石中有许多小孔，比如沙石——水将渗透过这些小孔，直到由不渗透水的岩石构成的那个层面。

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Sea coral naturally contains calcium carbonate and possesses a porous architecture not unlike natural bone.

BBC: Coral heals serious fractures

While the suction hand does not work well with porous objects (clothing) or flat items, such as disks, it can pick up most hard objects, including glasses or bowls.

FORBES: Welcome, with a Nod to Robotics

Environmental organizations such as the Sierra Club and Defenders of Wildlife apparently are not bothered by the security risks that such a porous border creates at least not enough to restrain themselves from filing a lawsuit to prevent the DHS from doing the job that Congress is requiring it to do.

CENTERFORSECURITYPOLICY: Green Borders