Accurate identification, accurate training and accurate investigation. According to Himalayan data query, the trinity precision training of Chinalco Group refers to accurate identification, accurate training and accurate research. The training content mainly covers the five systems of the operation department, such as coal preparation system, gasification system, black water system, desulfurization system and air separation system, covering the process principle, control parameters, start-up and shutdown steps and various matters needing attention in operation.