The social benefit is significant if the existing drying and distilling refrigeration recovery system for a water cooling type dry cleaning machine is reconstructed.
如对现有的水冷式干洗机烘干及蒸馏制冷回收系统进行改造，其社会效益非常显著。
The social benefit is significant if the existing drying and distilling refrigeration recovery system for a water cooling type dry cleaning machine is reconstructed.
如对现有的水冷式干洗机烘干及蒸馏制冷回收系统进行改造，其社会效益非常显著。
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