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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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grauwackes
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Graux
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Grauzam
GRAV
grav-
Grava
Gravacchini
gravacridonechlorine
gravacridonediol
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更新时间:2025/3/23 20:25:09