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单词 clay
释义 clay
[klā]
GEOLOGY
1. A natural, earthy, fine-grained material which develops plasticity when mixed with a limited amount of water; composed primarily of silica, alumina, and water, often with iron, alkalies, and alkaline earths.
2. The fraction of an earthy material containing the smallest particles, that is, finer than 3 micrometers.
MATERIALS
A special grade of absorbent clay used as a filtering medium in refineries for removing solids or colorizing matter from lubricating oils.
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