高硬度水的二级软化与实际应用
孙锁柱, 薛文华
Secondary softening of high hardness water and its actual application
Sun Suozhu, Xue Wenhua
工业水处理 . 2000, (11): 40 -42 .  DOI: 10.11894/1005-829x.2001.20(11).40