瑞典是个地广人稀且海岸线漫长的国家,控制着波罗的海与北海的汇合口,战略地位十分重要,瑞典需要维持强大海军的战斗力,以保持在本地区维持稳定的能力。瑞典在其狭长的海岸线上分布着近千个岛屿,各岛屿间的多重水道使得他国潜艇趁机渗透的机率大增;海潮、盐分、暗礁与海面海底温差等因素,也使得探测潜艇更加困难。基于能在初期有效对 Sweden is a sparsely populated and long coastline country that controls the confluence of the Baltic Sea and the North Sea. Its strategic position is very important. Sweden needs to maintain a strong naval combat capability in order to maintain its stability in the region. Sweden has nearly 1,000 islands on its long, narrow coastline. The multiple watercourses between islands have greatly increased the chance of infiltration by other submarines. The factors such as the tides, salinity, reefs and seafloor temperature have also made it more difficult to detect submarines. Based on can be effective in the early pairs