The research analyzed how China's energy use changed from 2006 to 2015 by looking at factors like the size of industries, the way they produce things, and how efficiently they use energy. They found that the increasing size of China's industries and how they make products are the main reasons why energy use went up. However, energy efficiency measures helped to slow down this growth. Overall, the size of industries and how efficiently they use energy are the main factors affecting the increase in China's energy use.