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苯酐 běn gān
chem. phthalic anhydride; PA
〈俗称〉苯酐〈固化剂〉 běn gān
plast. phtalic anhydride
苯酐〈俗称〉 běn gān
plast. phthalic anhydride
苯酐: 120 phrases in 13 subjects
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