1·This mild allergic reaction is often blamed on preservative chemicals called sulphites, but they are responsible for only an eighth of cases.
这种轻微过敏反应常常和作为防腐添加剂的亚硫酸盐有关联。
2·The residues of sulphites in products differ owing to the different processing method and adding amounts.
制品中亚硫酸盐的残留量因加工方式和添加量而异。
3·The flotation separation of molybdemun, copper and bismuth sulfides minerals, which are obtained by table flotation of wolframite primary concentrates, is studied using sulphites as depressants.
本文论述采用亚硫酸盐作抑制剂，对黑钨粗精矿精选枱浮钼、铜、铋硫化矿浮选分离的研究。