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2Â¥: Originally posted by jiagle at 2018-05-17 13:35:41
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xiaomi0401

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  1 : 1     nPOCl3 + nH2O = (PO2Cl)n +  2nHCl
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ytwiger

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ÒýÓûØÌû:
5Â¥: Originally posted by xiaomi0401 at 2018-05-17 15:31:25
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