反应器上部气相空间温度？ 反应器上部气相空间温度也就是甲醇蒸汽进入催化剂床层的温度。 the top temperature of the reactor which is also the temperature of the catalyst bed through which mathanol vapor flows (this is not a sentence but an attributavie clause). 改变甲醇蒸汽进料经过反应器冷管换热后进入反应器上部气相空间，和直接进入反应器上部气相空间的比例 change the ratio of the flow rate of methanol vapor entering the top of the reactor through an integrated heat exchanger to the rate of methanol vapor entering directly查看更多
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