weather coal meaning in English
风化煤
Examples
- The humic acid which depolymerized from huainan weathered coal with catalysts was prepared , and the influence of yield and structure of the humic acid which was prepared with different catalysts were investigated
摘要以淮南风化煤为对象，硝酸催化氧解制备腐植酸，考察不同载体的催化剂对风化煤氧解制备腐植酸收率和结构组成的影响。