名词
中文翻译：内部密封同义词
同义词：
['internal lock', 'internalsealing']
例句：
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1. Thenew model car has an internal seal thatkeeps the engine cool.
新款汽车有一个内部密封，保持发动机冷却。
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2. Thecompany's internal sealis designed to prevent unauthorized access.
公司的内部密封设计用来防止未经授权的访问。
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3. Theengineers worked tirelesslyto ensure the internal seal wasperfect before the launch.
工程师们努力不懈，确保在发射前内部密封完美无缺。