Training record means that you sign in at the beginning and end of training, and then there will be training records. If you cut the screen and quit, the training time is not enough. Another possibility is that there is a problem with signing in, so there is no training record because there was no signing in at that time.
In order to achieve unified scientific and technical norms and standardized operations, trainees can achieve the expected level of improving their goals through certain educational and training techniques through modern information processes such as goal planning, knowledge and information transmission, skill proficiency drills, homework performance evaluation and results exchange announcements. The training of personal ability and working ability is called training.