submarine block

例句：

1. 1. The submarine was equipped with a sophisticated navigationsystem.
   这艘潜艇装备了一套先进的导航系统。
2. 2. The submarine block isessential for the operation of the submarine.
   潜水艇块对于潜艇的运行至关重要。
3. 3. The submarine block is usedto store and protect sensitive information.
   潜水艇块用于存储和保护敏感信息。