求翻译：将低品位的热能回收然后经过不同的工艺进行利用，在印染业中就有很多的可以回收利用的低品位热能，回收预热后可以减少所用的总的热的消耗，文章讲述了一种新的印染业热污水的回收方式，对螺旋扁管换热器和其利用在余热回收工艺进行了介绍，重点讲述了与其他换热器相比其有的优点，并以具体的案例对这种余热回收方式进行了分析，得出应用螺旋扁管换热器对热污水进行余热回收具有显著的节能效果和经济效益，可以说螺旋扁管换热器在印染行业热污水余热回收中的应用具有积极的意义，是一种值得推广的新技术。是什么意思？

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The low grade heat recovery and then go through the various processes used in printing and dyeing industry, they have a lot in the recycling can be a low-grade thermal energy recovery, after warm-up can reduce the overall consumption of the heat, the article describes a new kind of printing and dyei

Will low grade of heat recovery and after different of technology for using, in dyeing industry in the on has many of can recovery using of low grade heat, recovery preheating Hou can reduced by with of total of hot of consumption, article told has a new of dyeing industry hot sewage of recovery way