One of the irregularly-shaped and highly porous aggregates of particles found in soil having a crumb structure. (Cf. sense 3b.)
| 单词 | θ6114 |
| 释义 | the world > the earth > structure of the earth > constituent materials > earth or soil > [noun] > aggregate (3) crumb1906 One of the irregularly-shaped and highly porous aggregates of particles found in soil having a crumb structure. (Cf. sense 3b.) crumb structure1906 the condition of soil when its particles are aggregated into crumbs (sense 1c). ped1951 A structural unit, or individual aggregate of material, in an undisturbed soil. |
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