PAA
PAA可以指：
化学
- 4,4'-二甲氧基氧化偶氮苯，para-Azoxyanisole
- 过氧乙酸，peroxyacetic acid
- 苯乙酸，Phenylacetic acid
- 聚丙烯酰胺，polyacrylamide
- 聚丙烯酸，Poly acrylic acid
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