sand gradation

英 美
  • 砂粒级配
  • gradation n.渐变;阶段;等级;刻度;元音交替
  • sand n.沙;沙子;沙滩;黄灰色vt.撒沙;打磨;以沙掩盖
    1. Western Kunlun area locates in the area of eolian sand accumulation in China, and the granularity of eolian sand is smaller than that of the other areas.
      摘要西昆仑地区地处中国风成沙的沉降区,与其它区相比较,风成沙粒级偏细。