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单词 diatomaceous earth
释义

Definition of diatomaceous earth in English:

diatomaceous earth

nounˌdʌɪətəˈmeɪʃəs
mass noun
  • A soft, crumbly, porous sedimentary deposit formed from the fossil remains of diatoms.

    硅藻土

    Example sentencesExamples
    • As the diatoms die, they sink to the ocean floor, becoming a thick ooze of decomposing matter, and eventually giving rise to deposits of the sediment called diatomaceous earth.
    • Also, vacuuming and using diatomaceous earth (the sandlike remains of ancient marine organisms) are natural ways of helping to control fleas in the environment.
    • Diatoms have an extensive fossil record going back to the Cretaceous; some rocks are formed almost entirely of fossil diatoms, and are known as diatomite or diatomaceous earth.
    • Depth filtration, usually with a particularly porous form of silica called diatomaceous earth forming the layer through which the cloudy wine is passed, is commonly used for this early rough filtration.
    • The richest sources of diatom fossils are deposits of their skeletons known as diatomite, or diatomaceous earth.

Definition of diatomaceous earth in US English:

diatomaceous earth

noun
  • A soft, crumbly, porous sedimentary deposit formed from the fossil remains of diatoms.

    硅藻土

    Example sentencesExamples
    • Diatoms have an extensive fossil record going back to the Cretaceous; some rocks are formed almost entirely of fossil diatoms, and are known as diatomite or diatomaceous earth.
    • The richest sources of diatom fossils are deposits of their skeletons known as diatomite, or diatomaceous earth.
    • Also, vacuuming and using diatomaceous earth (the sandlike remains of ancient marine organisms) are natural ways of helping to control fleas in the environment.
    • Depth filtration, usually with a particularly porous form of silica called diatomaceous earth forming the layer through which the cloudy wine is passed, is commonly used for this early rough filtration.
    • As the diatoms die, they sink to the ocean floor, becoming a thick ooze of decomposing matter, and eventually giving rise to deposits of the sediment called diatomaceous earth.
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更新时间:2025/6/19 11:01:22