at the lower third of...感觉好乱，谁帮下忙理理阿！？ the flow to reaction zone 8 is via line 42 which can be split again via splitter 48 so that a portion, e.g. line 49 , of stream 42 can be introduced at the lower third of the distillation zone of tower 2 along with, or independently of, the introduction of flow 42 into reaction zone 8 . the lower third of the distillation zone是蒸馏区下1/3区（对应middle third和upper third) along with是随着，随同 independently of和along with对应，按字典意思即可 大致意思就是管线42可以通过分配器48分成两路，这样通过管线42进入反应区8的物流42中的一部分可以进入到塔2蒸馏区下1/3区。 查看更多
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