multi-stage falling film evaporation
multi-stage falling film evaporation
多级降膜蒸发
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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Most part of latent heat of the vapor and the sensible heat of water can be utilized several times because multi-stage falling film evaporation and condensation processes are utilized.
该装置的蒸馏系统采用了多级降膜蒸发及降膜凝结技术，使其中大部分蒸气潜热及部分盐水的显热得到了多次重复利用。
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