| 释义 |
1 ?酸衍生物 ... acid anhydride 酸酐 acid derivative 酸衍生物 activating or deactivating effect 活化或者钝化作用 ...
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Then, a dispersant, composed of humic acid derivative, is added to produce to coal water mixture. 然后，加入含腐殖酸衍生物的分散剂，以产生煤水混合物。 - 2
Ascorbic acid derivative or salt thereof, method for producing the same, and cosmetic preparation. - 3
Pyridonecarboxylic acid derivative substituted by bicyclic amino group, ester thereof, salt thereof, and bicyclic amine as intermediate thereof. 有双环氨基取代的吡啶酮羧酸衍生物，其酯及盐，以及可用作其中间体的双环类胺。
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