| 释义 |
pyromellitic anhydride
- 酸酐suān gān
anhydride; acid anhydride
- 乙酸酐yǐ suān gān
acetic anhydride
- 酐gān
anhydride
- 三氧化硫sān yǎng huà liú
sulfur trioxide; sulfuric anhydride; sulfuric acid anhydride
- 醋酐cù gān
acetic anhydride
- 琥珀酸酐hǔ pò suān gān
succinic anhydride
- 邻苯二甲酸酐lín běn èr jiǎ suān gān
phthalic anhydride
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