"What is lacking in garrisoning on the plateau is oxygen, and what is not lacking is spirit!" Hou Min, a first class sergeant of a brigade in the Xizang Military Region, has served on the plateau for more than 10 years, and has an unforgettable memory of "hypoxia". During a border patrol, the patrol team encountered a snowstorm at an altitude of over 5000 meters at a mountain pass. The officers and soldiers hid in the mountain pass and waited for the snow to subside. When altitude sickness intensifies, the rudimentary blue oxygen bag is passed through the hands of the officers and soldiers, and each person can only inhale oxygen for a few tens of seconds. In the past, oxygen was very precious, and oxygen bags were important patrol supplies and 'life supplies', "Hou Min said. When there is a lack of oxygen, guarding the border on the plateau relies on willpower. ”Wang Bing, a second level sergeant in a certain regiment, recalled that in the winter when the oxygen content was low, he would have headaches and chest tightness when he returned from patrol. It was really "three parts rely on oxygen, seven parts rely on spirit"! These memories are a microcosm of the arduous struggle of frontline officers and soldiers on the plateau against the hypoxic environment. Years ago, officers and soldiers of a certain outpost carved a "ladder" on an icy cliff, relying on yaks to transport oxygen cylinders weighing over a hundred pounds; Constrained by oxygen production technology, grassroots military doctors invented the "30 minute intermittent oxygen inhalation method" to reserve oxygen for their comrades who need it the most. Solving the problem of oxygen inhalation for high-altitude officers and soldiers is an inevitable requirement for the construction of high-altitude troops in the new era. In recent years, the Support Department of the Xizang Military Region has listed oxygen production and supply as an important project. With the support of the higher authorities, it has invested a lot of resources to build an oxygen supply guarantee system that combines starting points and areas and radiates in steps. In the past, oxygen cylinders could only be placed in the bathroom, but now oxygen is directly delivered to the bedside. ”After completing training, the third level sergeant of a certain brigade, Gu Xiao, returned to the dormitory and turned on the oxygen machine. Oxygen was transmitted from the fixed oxygen station, and the fatigue of training slowly eased in the sound of the airflow in the oxygen delivery pipe. The newly built fixed oxygen production station of the brigade can ensure that thousands of officers and soldiers can receive oxygen at the same time. In the past, oxygen therapy was a 'luxury item', but now it is a 'daily necessity' within reach. ”The leader of the Health Department of the Support Department of the Xizang Military Region said that 164 units of the region have been built with such fixed oxygen stations, and the oxygen is directly connected to the platoon. In view of the characteristics of Xizang's many border outposts and scattered garrisons, they drew up a list of "isolated oxygen islands" and adopted the form of "superior distribution+procurement at the same level" to equip units with oxygen generating shelters, portable oxygen generators and other equipment, forming a new three-dimensional oxygen supply pattern. At the Chaguola outpost, small ground mounted oxygen concentrators are distributed to duty posts, continuously delivering oxygen to the snow capped battle positions. "In this place where we can grasp the sky, the officers and soldiers have basically achieved 'freedom of oxygen inhalation'!" At a duty post, Senior Private Yu Xun excitedly showed the oxygen inhalation terminal placed at the bedside to reporters, "The duration and concentration of oxygen inhalation can be intelligently adjusted, which is awesome". (New Society)