The concepts of thermodynamics are sufficiently abstract that communicating them from one English speaker to another is difficult. The concept of "entropy" is very difficult to conceptualize, e.g. waste heat, unusable energy, mismatched quantum levels, quantum noise, etc. Now you add to this the difficulty of communicating from Chinese to English (two very different languages) and you have a near impossible problem in communication.

I suggest that you ask your questions to a Chinese engineer or academic who is knowledgable in thermodynamics and hopefully you'll receive satisfactory answers.

Gary