clay particle contents的用法和樣例：
例句
- With the process of the sandy desertification in grassland, the contents of clay decreased.
隨著草原沙漠化的加劇，土壤粘粒含量趨于減少，砂粒增多。 - 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。
