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1.2.4-苯三甲，羧酸酐
chem. 1,2,4-benzenetricarboxylic anhydride; trimellitic anhydride; 1,2,4-benzenetricarbonic anhydride
1, 2, 4—苯三酸酐
oil trimellitic anhydride
1, 2, 4-苯三甲，羧酸酐
chem. trimellitic anhydride
苯三 酸酐: 10 phrases in 4 subjects
Chemistry3
Oil / petroleum3
Plastics2
Polymers2

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