A porous cup often made of bone ash used in assaying to separate precious metals from base elements such as lead.

灰皿一种多孔杯，通常用骨类制成，在检验中把贵重金属从低劣物质如铝中分离出来。

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The Liverpool team created a porous crystal which has' walls' of atoms and cavities which act as containers for molecules.

利物浦大学研究小组创造了一种多孔晶体，它具有可作为分子容器的原子“墙”和孔穴。

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Its white and red cover consists of 1026 stainless plates, each about 1 mm thick, with a porous surface to lessen wind resistance.(See photo)

漂亮的红白外衣由1026块1毫米厚的不锈钢板做成，为了减少风的阻力，每块皮上都有无数的小孔。

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OK, so we ended up last time, we talked about Joule-Thomson expansion, which is an irreversible expansion through a nozzle, through a porous plug, constant enthalpy expansion.

上节课，我们讨论了焦耳-汤姆逊，膨胀过程,也就是气体，通过毛细管。

麻省理工公开课 - 热力学与动力学课程节选

You take a throttle valve, which consists of some sort of porous plug between two cylinders that is insulated. There is insulation here.

有一个节流阀，它由一些多孔的塞子组成,这些多孔塞在两个绝热的汽缸之中,这里是绝热的，底下也是绝热的。

麻省理工公开课 - 热力学与动力学课程节选

There is a long porous border.

有一个长长的，松散的边境线。

普林斯顿公开课 - 国际座谈会课程节选

Well a porous coalbed is very similar in chemical makeup to those water filters.

FORBES: With Gas Deal, Consol Strives To Turn Coal Green

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

BBC: Coral heals serious fractures

Ecuador, which also shares a porous border with Colombia, is in the throes of an economic meltdown.

CENTERFORSECURITYPOLICY: Center For Security Policy