caliche
英[kə\'li:tʃi:]
美[kə\'litʃi]
基本释义
- n.
- 生硝，硝酸钠; 钙结层
英英释义
Noun
1. crust or layer of hard subsoil encrusted with calcium-carbonate occurring in arid or semiarid regions
2. nitrate-bearing rock or gravel of the sodium nitrate deposits of Chile and Peru