Generally speaking, the smaller Porosity, the more dense rock, the greater surface area, the lower permeability, the more serious the adsorption phenomenon is.

总体而言，孔隙度越小，岩石越致密，比表面越大，渗透率越低，吸附现象越严重。

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Buoyancy is a force that causes lighter material to rise through surrounding denser material. The hot liquid magma rises towards the surface through the more dense rock.

浮力是密度较高的物质把密度较低的物质往上升的力量，所以炽热的岩浆会通过密度较高的岩石上升到地面。

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Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.

鸟类在巢穴、岩石悬垂处、树丛以及茂密的灌木丛中寻找庇护，以躲避一天中最热的时候；而像更格卢鼠这样的哺乳动物则选择藏身于地下的洞穴中。

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The problem was that (gas) was locked in shale, the extremely dense layer of rock under Dallas and Forth Worth.

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The entire city of Fort Worth sits over a gas dense layer of black rock called the Barnett Shale that only recently became possible to access.

NPR: Drilling for Gas in Dallas-Fort Worth

With its riff-heavy mixture of classic rock and Craig Finn's lyrically dense storytelling, the group crafts detailed musical universes that have already made it a critical darling and fan favorite.

NPR: Dr. John, Hold Steady, Ani DiFranco in Concert