| 单词 | C-horizon |
| 释义 | C-horizon C-ho.ri.zon AHD: [s¶“h…-rº”z…n] D.J. [6si8h*7ra!z*n]K.K. [6sih*7ra!z*n]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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