溶斗

róng dǒu
  • doline;funnel
溶斗溶斗
溶斗[róng dǒu]
  1. 溶斗型铝土矿小而富,主要分布在豫北地区;

    Funnel type bauxite ore deposits are in small size and high grade occurring mainly in the north Henan province .