当陷阱阀门关闭的时候，植物在阀门周围的特殊角质层上分泌粘液，形成不透水密封垫。
When the trap door shuts, the plant excretes mucilage next to a special cuticle around the door, creating a watertight seal.
只有通过培训，对防水仓作定期维护才能防止类似的问题出现，船员们应该知道在某些情形下水密门是关闭的——而且应该有专人负责对此进行检查。
It's training, maintaining your watertight hatches, the crew knowing to keep watertight doors shut in certain conditions-somebody making sure they're keeping them shut.
关闭所有水密门。
无门水密百叶窗适用于船舱通风，关闭百叶窗能达到水密防水效果。
Applicable to the ventilation of the vessel cabins. Closing the shutter can achieve the effect of watertight class water proofing.
无门水密百叶窗适用于船舱通风，关闭百叶窗能达到水密防水效果。
Applicable to the ventilation of the vessel cabins. Closing the shutter can achieve the effect of watertight class water proofing.
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