Lots of coal mines have accumulated experiences on applying the mining grid for the safe and efficient recovery of the fully mechnized longwall. Through our active communication with the editor-in-chief and publisher, the mining grid technology for longwall recovery and its operation manual has been included in the "Multimedia Course of the Position Standard Operation of the Coal Mine Crew".

The kit of this electronic course was compiled and published based on the latest "Coal Mine Safety Regulations", "Technical Operation Regulations of the Coal Mine Workers" and "Operating Rules", 67 types of work in total, including the coal extraction, tunneling, electromechanics, transportation and others. Combining the video and audio, the multimedia course makes the safety education and technology training more intuitional, vivid and lucid, to improve the safety education effect of the coal mines.