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德国是世界上最早使用潜艇的国家之一,在世界潜艇发展史中占有重要的地位,其U型潜艇在两次世界大战中战功显赫、闻名于世。二战结束前,德国开创性地在ⅩⅪ型潜艇上采用流线形艇体和使用水下通气管,首次实现了潜艇水下航速超过水面航速,使潜艇在潜望深度即可使用柴油机航行,大大提高了潜艇的隐蔽性,成为潜艇发展史上的一个里程碑。二战后,由于国际公约限制德
As one of the earliest countries in the world to use submarines, Germany occupies an important position in the history of the world’s submarine. Its U-shaped submarine was famous for its outstanding achievements in the two world wars. Before the end of World War II, Germany pioneered the use of streamlined hull and submersible snorkel on the XXI submarine. For the first time, the submarine’s underwater speed surpassed that of the surface water so that the submarine can sail on a diesel engine at the perispect depth. Improve the submarine’s concealment, become a milestone in the history of the submarine. After World War II, due to international conventions to limit Germany