The labeling yield is about 45% using sodium ascorbate as reductant;
采用抗坏血酸钠为还原剂时，标记率为45％；
The use of SO2 could not effectively prevent the oxidation of grape wine. However, combined use of SO2 and sodium ascorbate could achieve satisfactory anti-oxidation effects.
单一使用SO2不能很好地防止葡萄酒的氧化，采用抗坏血酸钠与SO2结合防止玫瑰香干白葡萄酒的氧化的效果很好。
The use of SO2 could not effectively prevent the oxidation of grape wine. However, combined use of SO2 and sodium ascorbate could achieve satisfactory anti-oxidation effects.
单一使用SO2不能很好地防止葡萄酒的氧化，采用抗坏血酸钠与SO2结合防止玫瑰香干白葡萄酒的氧化的效果很好。
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