名词
中文翻译：三行式活门
同义词：
['three-row hatch', 'three-row gate例句：1. The hatch was designed to keep birds from flying out during the night.（这个活门的设计是为了在夜间防止鸟类飞出。）']
例句：
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1. The hatch was designed to keep birds from flying out during the night.
这个活门的设计是为了在夜间防止鸟类飞出。
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2. The hatch is used to open and close the door in a safe way.
这个活门用于安全地打开和关闭门。
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3. The hatch was installed on the roof of the ship to protect it from damage.
这个活门安装在船上的屋顶上，以保护它免受损坏。