The first mate has practical training in safety and medical treatment. According to the relevant public information, the actual operation of the first mate's security medical training is to let the students better master the training content and improve their actual combat ability. Actual combat drills include fire fighting, emergency rescue, first aid and emergency treatment. Students can be familiar with the operation process, master skills and improve their actual combat ability. Practical exercises can also help students better understand safety technology and improve safety awareness, thus better protecting the safety of themselves and others.