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

词汇	COPNA resin
释义	COPNA resin 基本例句沥青树脂 Pitch resin was synthesized from benzaldehyde and heavy oil residue.利用纯芳烃原料和重质渣油研制的沥青树脂具有优良的耐热性。
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