塔顶含氧量超限报警，其原因是（）A 原料油供给和预热系统B 裂解和高压水蒸气系统C 急冷油和燃料油系统D 急冷水和稀释蒸汽系统

>> 国家开放大学 / 化工产品生产技术

国家开放大学 / 化工产品生产技术

塔顶含氧量超限报警，其原因是（）
A 原料油供给和预热系统
B 裂解和高压水蒸气系统
C 急冷油和燃料油系统
D 急冷水和稀释蒸汽系统

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化工产品生产技术

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