The monumental face pack consists of multani mitt i, or fuller's earth, a lime-rich clay found across northern India and used in many face masks and body treatments.

漂白土产于印度北部，是一种富含石灰石的粘土，很多面膜和印度草药护肤品中都含有这种成分。

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Using the sand pack model, the percolation features of low permeability cores with various clay minerals and different proportions of clays are studied under different fluid injection patterns.

通过室内填砂管渗流实验，研究了不同粘土类型、不同粘土比例的低渗透岩心在不同流体注入方式下的渗流特性，并根据实验结果分析了其渗流机理。

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On the night of a class Sitton has four or five helpers (mostly ex-racers) who spend several hours circling the track in old junk cars to pack down the sticky Texas clay.

FORBES: Real men eat dirt