China Coal Distance Education and Training Network counts the study time by watching the live broadcast. When scholars watch the live broadcast, the background of the distance education and training network records the viewing time at any time, and watching the live broadcast counts as learning time. The National Coal Industry Modern Distance Education and Training Network (hereinafter referred to as the Coal Distance Education Network) is the first modern distance education and training network in China. It is sponsored by China Coal Industry Association, and the training center of China Coal Industry Association is responsible for teaching operation and management. It faces the national coal enterprises and features the service industry.