| 释义 |
C-ho·ri·zon AHD[sēʹhə-rī'zən] D.J.[ˈsiːhəˌraɪzən]K.K.[ˈsihəˌraɪzən]n.（名词）- The third-deepest soil zone in ABC soil, unaltered by weathering and made up of the parent rock from which the two uppermost layers derive as well as other mineral materials.剖面层：ABC土壤剖面层中深度排第三的剖面层，不受风化的影响，由上两层及其他矿物组成的母岩所构成
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