정의: Sand is a granular material composed of finely divided mineral particles. Sand has various compositions but is usually defined by its grain size. Sand grains are smaller than gravel and coarser than silt. Sand can also refer to a textural class of soil or soil type; i.e., a soil containing more than 85 percent sand-sized particles by mass.
| 핵심 연구 분야 | Artificial Intelligence |
|---|---|
| 주요 연도 | 2024년 |
| 주요 연관 키워드 | weather |
| 좋아요 수 | 0 |