潜艇是海军作战的主力,它以出其不意的攻击杀伤敌舰,对航空母舰构成巨大威胁。它在昏暗的海底世界游弋,如果遇上被击伤、机械事故、武器错误操作,甚至被卡在洞穴、礁石中,失去了自行上浮的能力,对于每个潜艇兵来说,无疑是一场噩梦。一旦潜艇在水下失事,失去上浮能力被困于水下, The submarine is the main force of naval operations. It uses unexpected attacks to kill enemy ships and poses a great threat to aircraft carriers. It swims in the dim seabed world. If it is hit, a mechanical accident, a wrong operation of the weapon, or even being stuck in a cave or reef, it loses its ability to float on its own. It is undoubtedly a battle for every submarine soldier. Nightmare. Once a submarine crashes underwater and loses its ability to float, it is trapped underwater.