Do coal miners have any other energy after ascending the well?

Now let's talk about the key underground coal miners. Their working hours are 8 hours in a relatively standard mine, and 8 hours in each shift when the task is tight. I won't come up for eight hours after I go down the well. The reason will be mentioned later. Irregular mines will be extended to 12 hours, which is basically the physiological limit of miners.

Coal miners, a group of seemingly insignificant people from China, used their calloused, rough hands, which were never washed but cleaner than many decent people, to give light and heat to such a big China.