名词
中文翻译：Unknown
同义词：
['external binding', 'external fastening', 'external securing']
例句：
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1. Thedoor has an external locking system that prevents unauthorized access.
这扇门有一个外部锁定系统，防止未经授权的进入。
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2. The car's exterior locking mechanism is designed to secure the doors and windows.
汽车的外部锁定机制设计用来锁紧车门和窗户。
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3. The company uses external fastening systems to ensure the safety of its products during transportation.
该公司使用外部固定系统来确保其产品在运输过程中的安全性。