求助！各位给翻译一下这两段话吧，谢谢了！看的头大了。 ...？ extractive distillation can be performed in continuous operating mode in a sequence of two extractive and regeneration columns or in a single-batch distillation column with at least three batch distillation steps. 萃取精馏可连续运行，其模式可以是两个萃取和再生塔依次搭配，也可以是用一组蒸馏塔来做三批次的蒸馏化处理。differences exist between both operating modes as the batch mode offers more flexibility in terms of achievable product and larger operating parameter ranges.这两种操作模式之间是存有差异的， 而批量蒸馏化的模式要更灵活些，因为其可萃取产品和工艺操作参数的范围可以更宽。the parameter ranges can be assessed by analyzing liquid composition profiles in the column sections computed from an approximate model, before validation by simulation and experiments. 工艺操作参数的范围可以通过对塔柱截面的液体成分分布用一个近似模型做计算来先行评估，然后再通过模拟和实验来核实。查看更多
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