The use of sulphurousacid in the manufacture of apple juice is prohibited.
硫磺酸，是不是目前在使用，硫磺酸在制造苹果汁的中是禁止的。
2
The result shows that after the plants were sprayed with phosphate buffer, they had an obvious protective function to the harm caused by sulphurousacid.
结果表明，植物经磷酸缓冲液处理后，对亚硫酸伤害具有明显的防护作用。
3
The chromatropic acid and magenta sulphurousacid methods for the formaldehyde determined by spectrophotometry are studied in this paper, and the two methods are compared.