surface soil的用法和樣例：
例句
用作名詞 (n.)
- Surface should be treated as a key technology for conservation tillage.
表土耕作應該作為保護性耕作的一項關鍵技術。 - The runoff sediment has higher clay content than the surface soil, andthe splash soil has higher fine sand content.
通過對侵蝕上壤的顆粒組成分析表明，侵蝕對土壤顆粒具有選擇性，徑流侵蝕泥沙中粘粒含量比侵蝕表土含量高，濺蝕泥沙中細沙粒含量變高。
