purifyv.(使)净化;(使)精炼;涤罪
purifying techniques净化技术
purifying tail water污水处理
purifying conversion过滤效率
purifying efficiency净化效率
purifying molten iron净化铁水
Purify one's thoughts恩斯特松
purifying of flue gas烟气治理
purifying and cutting治削
purifying melting tin锡液净化
purifying formaldehyde净化甲醛