"An unexploded 'torpedo' is missing, immediately searched and salvaged." Recently, a certain sea area was stormy and high. With a single command, the search and salvage training organized by a naval defense and rescue detachment began. After the ship arrived at the mission sea area, the diving department quickly hung side scan sonar on both sides of the ship's hull to search for the target. As the sea breeze grew stronger, the waves stirred up caused severe shaking of the sonar. Coupled with the influence of clutter, Miao Rongzeng, the leader of the side scan sonar team, found it difficult to accurately determine the echo properties. At this moment, he remained calm and composed, staring closely at the sonar display screen to distinguish images while carefully screening various signals to eliminate interference. The waves caused a large number of echo points, testing Miao Rongzeng's eyesight and endurance. In no time, beads of sweat covered his forehead. "The volume of 'torpedoes' is small, and the echoes generated by sonar detection are already difficult to detect. Coupled with factors such as unfamiliar sea areas and complex sea conditions, searching and salvaging by officers and soldiers in this situation is like fishing for' needles' in the ocean, and the difficulty can be imagined." Miao Rongzeng said. During the conversation, a dot flashed by. Experienced Miao Rongzeng immediately reported, "Suspected torpedo detected." After receiving the situation report, the captain decisively ordered the officers and soldiers to hang the image sonar for synchronous tracking and positioning. "When carrying out tasks, we need to practice more." The leader of the detachment said that during this training, they aimed to meet the urgent needs of the battle and focus on the shortcomings of their ability to construct a realistic combat environment. They focused on side scan sonar search, image sonar positioning, and underwater operations for divers, and carried out specialized attacks and refinement, aiming to use complex sea conditions to test the performance of equipment and hone the ability of officers and soldiers to quickly search and rescue underwater. "Diving operation deployment." After accurately locating the position of the torpedo, the captain quickly organized the deployment of a salvage operation site. Upon hearing the order, two divers quickly put on their gear, conducted airtightness checks, and flew into the water. After diving to a certain depth, the two advanced in search formation. At this point, the surge causes a decrease in visibility, and they can only carry out operations based on image sonar guidance and the low light of helmet diving lights. During this period, the target's position is constantly shifting due to the influence of water flow, making the search more difficult. After a period of searching, a diver was the first to find the torpedo. After a brief sign language exchange, the two used steel cables and locks to bind the torpedo. "Bundled up, ready for lifting!" After receiving feedback from the diver, the captain issued a lifting instruction, and the operator quickly started the crane upon receiving the instruction. As the slings rose, the torpedo slowly surfaced. The complex underwater environment is the most authentic examination room. Only by being adept at refining moves in complex environments can we achieve calm and flexible responses during wartime The leader of the detachment told reporters that in the future, they will also carry out full process training around subjects such as joint search and rescue, sunken object salvage, and submarine rescue, gradually building a three-dimensional disaster prevention and rescue system. (Lai Xin She)
Edit：HAN ZHUOLING Responsible editor：CAICAI
Source：81.cn
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