英语词汇“copper modified”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	copper modified
释义	copper modified 基本例句甲醛 A new ketone resin is prepared from residuum of cyclohexanone rectification and formaldehyde with compound acid as catalyst,it is modified with pyromellitic dianhydride.以环己酮精馏残渣和甲醛为原料，用复合酸作催化剂，通过均苯四甲酸酐改性，合成一种新的酮树脂。
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