Flying sand and rolling stones are found on the northern Tibetan Plateau. The engineering vehicle suddenly "lay on the ground" and worried the officers and soldiers of a Red Army Chemical Prevention Company in Xinjiang Military Region. The sudden situation of the vehicle will not only affect the ongoing fast obstacle crossing drill, but also the vehicle operating arm will be stuck in the middle of the air. If it falls out of control, the consequences will be unimaginable. "Make way quickly, monitor Wang is coming!" The crowd followed their orders and saw Wang Guoqing, the first sergeant in charge of the security work of the driving training ground, running with repair tools on his back. After an inspection, Wang Guoqing determined that the vehicle could not work because of the sintering of the line. Later, he took the method of lapping lines to eliminate the fault. As the drill continued, Wang Guoqing wiped the sweat on his forehead and breathed a sigh of relief. "As long as monitor Wang comes, he will be able to save the day." Looking at Wang Guoqing's back, the comrades in arms said. Wang Guoqing, who has been in the army for 26 years, worked as a repairman at the beginning of his enlistment. Now he has grown into a skilled repairman. For more than 20 years, he has always been dedicated to his own post, practiced vehicle maintenance skills, studied security skills, and made his own contributions to ensuring smooth operation of vehicles. That year, Wang Guoqing, a new soldier, arrived at the Repair Company at the beginning of his career. The thick stack of theoretical textbooks, the hot and unbearable repair shop, and the greasy camouflage clothes did not make him retreat. Wang Guoqing was determined to overcome difficulties. If you can't remember theoretical knowledge, you will copy and memorize it again and again; If you don't understand the professional knowledge, you should consult with an open mind and study overtime; The structure and principle were not clear, so he locked himself in the warehouse, disassembled equipment one by one in front of the textbooks, and carefully pondered... With this stubborn strength, Wang Guoqing's skill level improved significantly, and soon became the backbone of the company. In recent years, Wang Guoqing summarized the maintenance skills and innovated the repair tools, and was responsible for the promotion of the "Dual Ability Teaching Material for Driver Maintenance" in Xinjiang Military Region; The Plateau Vehicle Maintenance Technology Summary, which was compiled as the lead, provides an important reference for grass-roots units to solve security problems. In 2019, he participated in the maintenance of vehicles for the 70th anniversary of the National Day parade and successfully completed the task with his comrades in arms. "I will stick to my post, be strong and capable, and be the screw to ensure success." Wang Guoqing said firmly when talking about his military experience. (Liu Xinshe)