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  1. Oxford American Dictionary

    crumb structure

    • IPA[krəm ˈstrək(t)SHər]
    • n.
      the porous structure or condition of soil when its particles are moderately aggregated

    • noun: crumb structure

    • 釋義

    名詞

    • 1. the porous structure or condition of soil when its particles are moderately aggregated good crumb structure depends on the amounts of clay and organic matter in the soil