名词中文翻译
中文翻译：密封门
同义词：
['sealed door', 'watertight door']
例句：
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1. The new security system has a watertight door that prevents intruders from getting in.
新的安全系统有一个密封的门，防止入侵者进入。
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2. The factory uses a watertight door to keep the workers safe during the construction process.
工厂使用一个密封的门来在施工过程中保护工人的安全。
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3. The old building had a watertight door that was difficult to open without tools.
这座旧建筑有一个很难打开的密封门，没有工具是打不开的。