caliche
英:[kə\'li:tʃi:]
美:[kə\'litʃi]
基本释义
- n.
- 生硝,硝酸钠; 钙结层
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英英释义
Noun1. 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