酸碱清洗液
acid and alkali cleansing solution
碱-酸-碱工艺
base-acid-alkali synthesis
硫酸酸洗液
Sulfuric pickling solution
盐酸酸洗
chlorohydric acid pickling
acid pickling of iron
Pickling
盐酸酸洗废液
hydrochloric acid pickling wastewater
acid wastewater of hydrochloric acid
Nd-四甘醇醛缩苯丙氨酸Schiff碱配合物
nd-noncyclic polyether-phenylalanine schiff base
pH计测定的酸碱滴定法
acid-base titration with pH meter
氨法碱洗
Ammonia Method and Alkali Scour