回收废热 meaning in English

recovering waste heat

And when cop reaches 0 . 3 , temperature life is as low as 30 or 40 . from the view of thermodynamics , conclusions can be drawn that the high - low cycle is good to be used to recover waste heat , the parallel cycle is not relatively , and the low - high cycle is not at all
由此可以得出结论，在回收废热方面，从热力学角度来看，高低型二级热变换器具有很好的应用价值，并联型相对一般，而低高型根本不具有实际应用价值。