If the ship's hull was breached, these compartments could be sealed off from each other with the flick of a switch that closed watertight doors connecting them.

如果船体被破坏，只需轻按一个开关，关闭连接它们的水密门，这些隔间就可以相互密封。

The team spent over an hour breaking through an external watertight door and then a second metal door to get into the sunken boat.

团队花了一个多小时打开一扇外部水密门，然后打开第二扇金属门进入沉船。