olefin reduction catalyst
olefin reduction catalyst
烯烃还原催化剂
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The heavy oil cracking ability and the olefin reduction of cracking product of the said catalyst were obviously better than that of the conventional heavy oil cracking catalyst.
催化剂重油裂化能力和裂化产品降烯烃效果都明显优于常规重油裂化催化剂。
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