| 单词 | percarbonic acid | 
| 释义 | percarbonic acidnoun  per·carbonic acid    ¦pər,  ¦per+…-     : any of three peroxy acids derived from carbonic acid and known only in the form of their salts and esters    especially : the peroxy-di-carbonic acid H2C2O6    called also peroxycarbonic acid —not used systematically | 
	
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