【单选题】【消耗次数:1】
热裂化反应可以使得汽油中的( )转化为汽油。
煤油
润滑油
柴油
重油
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相关题目
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【简答题】 压缩机中的润滑油为冷冻油,简称[填空]。
【单选题】 基础油是组成润滑油的主要成分,占润滑油总量的70%~90%,是添加剂的载体。( )
① 
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