deck lock

例句：

1. 1. The deck lock was the only way to secure the boat's hatch.
   甲板锁是确保船舱门安全的唯一方式。
2. 2. The deck lock had been broken and we needed to replace it immediately.
   甲板锁坏了，我们需要立即更换。
3. 3.The deck lock was a crucial component of the ship's security system.
   甲板锁是船只安全系统的关键组成部分。