For example, when removing rouge, solutions containing sodium hydrosulfite can be substituted for the detergent wash step of the procedure.
例如：在去除水锈时，可用含有次硫酸钠的溶液代替去垢剂冲洗步骤。
The results showed that the decolorizing effect of sodium hydrosulfite was the best and the bleaching ability of FAS was the highest.
结果表明，保险粉的脱色效果最好，FAS的漂白能力最佳。
The results showed that the decolorizing effect of sodium hydrosulfite was the best and the bleaching ability of FAS was the highest.
结果表明，保险粉的脱色效果最好，FAS的漂白能力最佳。
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