All these demonstrate that sulphites have become one of major contaminations in aquatic products.
综合检测结果表明,亚硫酸盐污染已经成为水产加工品的主要污染因素之一.
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.
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