ship lock

例句：

1. 1. The ship was locked in the harbor for repairs.
   这艘船因修理而被锁在港口里。
2. 2. The captain had to use a ship lock to prevent the ship from leaving port.
   船长不得不使用船锁来阻止船只离开港口。
3. 3. The ship lock was a crucial part of the navigation system.
   船锁是导航系统的重要组成部分。