At the experience sharing meeting of a brigade in the Xizang Military Region, a college student soldier took the stage to teach around a professional knowledge point. In the audience, Wang Kai, a first level sergeant and repair technician, sometimes listens attentively, sometimes picks up his pen to record, with a focused expression like a new recruit. During his 19 year military career, it was this diligent and studious "rookie attitude" that allowed him to grow from a "layman" in the field of maintenance to a renowned maintenance expert throughout the entire brigade. When he was a child, Wang Kai imagined the scene of being able to control armored vehicles and roll up yellow sand on the training ground when he grew up. However, things did not go as planned. In December 2006, although he was able to put on his military uniform as he wished, he was assigned to the repair company. The densely packed circuit diagrams, complex mechanical structures, and repair tools scattered all over the ground made Wang Kai feel a deep sense of "skill panic". Wang Kai recalled that at that time, taking a little more rest would make him feel one step behind others. In order to improve his maintenance skills, Wang Kai followed the class leader like a shadow during the day, hitting hands, observing operations, and learning principles; At night, practice repeatedly in front of equipment alone until you achieve 'muscle memory'. With this perseverance, he mastered the skill of "listening to sound and identifying faults". During a drill to ensure safety, a new type of transport vehicle suddenly malfunctioned. Just when everyone felt it was tricky, Wang Kai accurately identified the fault point based solely on the engine noise and promptly eliminated the problem. After the mission ended, his comrades praised his performance, but he plunged into the parking lot overnight to review the issues and provide contingency plans for responding to such special situations more quickly. That year, a new type of transport vehicle was installed in the army, and this technical elite volunteered to tackle the most difficult power system repair. 36 year old Wang Kai sees himself as a new recruit and learns from scratch with the manufacturer's engineers. In three months, he filled six notebooks and drew hundreds of device schematics. Once, in order to figure out the problem of insufficient engine power, he worked continuously for nearly 20 hours until the problem was solved, only to realize that he hadn't eaten yet. In the end, he not only became the first technical expert in the entire brigade to obtain the qualification for new equipment, but also led a strong technical support team. In recent years, with the increasing number of highly educated soldiers, Wang Kaimin has keenly realized her professional knowledge shortcomings. By chance, Wang Kai saw someone at the manufacturer who could accurately diagnose vehicle faults using a laptop, and learned that Huang Xu, a college student soldier in the company, had studied a related major before joining the army, which impressed him. How does a computer achieve fault diagnosis function? Can you teach me? ”Wang Kai specifically sought advice from Huang Xu. From then on, a scene appeared in the study room: veterans humbly sought advice, while new recruits poured out their resources to teach each other. During a practical operation, Huang Xu pointed out Wang Kai's operational mistake and immediately corrected it: "You taught me the right thing!" This scene became a vivid scene of the company's "new and old learning from each other and making progress together". Opening Wang Kai's notebook, the working method of "seeing, listening, touching, asking, and feeling" on the title page is particularly eye-catching. He said, "On the road to building a strong military, there are no permanent 'teachers', only' students' who strive to learn diligently." Now, under his leadership, the company has formed a strong atmosphere of studying, and more than 30 technical backbones have emerged. Over the years, Wang Kai's achievements are evident to all, but he has always maintained his original aspiration: "To be a humble and studious' new recruit 'for the cause of strengthening the military