1. 剖面層ABC土壤剖面層中深度排第三的剖面層，不受風化的影響，由上兩層及其他礦物組成的母巖所構成
   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.
2. 侵蝕，風化，風蝕受日曬雨淋的巖石發(fā)生特征的變化甚至崩潰的過程中的任何一化學或物理變化
   Any of the chemical or mechanical processes by which rocks exposed to the weather undergo changes in character and break down.
3. 巖石經(jīng)風吹雨打而剝蝕，直至完全風化。
   Rocks weather until they are worn away.

風的英語翻譯：

化的英語翻譯：