本文首先对预水解液中的木素进行絮凝沉淀，以期提升后续离子交换的处理效率。结果表明：聚合氯化铝（PAC）和阳离子聚丙烯酰胺（CPAM）用量分......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

A new low-molecular-weight peptide with phenol oxidase activity, named Pc factor, was isolated and purified from liquid ......