名词中文翻译
中文翻译：门管
同义词：
['door tube', 'door seal']
例句：
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1.The gate tube is used to close the door during maintenance.
在维护期间，门管用于关闭门。
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2.The engineers were installing a new type of gate tube to improve security.
工程师们正在安装一种新型的门管，以提高安全性。
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3. The old gate tube was rusted and needed to be replaced.
旧的门管生锈了，需要更换。