bituminous peat
常見例句
- The fundamental properties, the humic acid content, and the structural features of the humic acid of some of the Chinese peat, lignite, and oxidized and weathered bituminous coals have been studied.
進行了我國若干泥煤、褐煤和氧化及風化煙煤試樣的煤質鑒定、腐植酸含量和腐植酸組成結構特征的研究。 返回 bituminous peat