用连二亚硫酸钠处理，效果显著。
亚硫酸盐是什么？
亚硫酸根离子可把酸化重铬锰酸钾由橙色变成绿色。
So 3 - can turn acidified potassium dichromate solution from orange to green.
因此，酒和亚硫酸盐的关系其实可以回溯到很久很久以前。
So the relationship between wine and sulfites goes way back.
对亚硫酸钠系统的生产原理、工艺流程、生产组织及运行方式进行了概述。
The production principle, process flow, organization and operation model of sodium bisulphate system are reviewed.
对亚硫酸钠系统的生产原理、工艺流程、生产组织及运行方式进行了概述。
The production principle, process flow, organization and operation model of sodium bisulphate system are reviewed.
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