bituminous peat
常见例句
- 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.
进行了我国若干泥煤、褐煤和氧化及风化烟煤试样的煤质鉴定、腐植酸含量和腐植酸组成结构特征的研究。 返回 bituminous peat