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| 二碱酸; 二元酸二元羧酸 | |||
| 二羟基酸; 二元酸; 二元羧酸 | |||
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двухосновная кислота : 4 phrases in 3 subjects |
| Chemistry | 2 |
| General | 1 |
| Polymers | 1 |
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