名词
中文翻译：车厢连接单元
同义词：
['trunk connection', 'trunk unit']
例句：
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1.The train's trunk connecting unit is responsible for the safety of passengers.
火车的车厢连接单元负责乘客的安全。
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2.The engineer had to disconnect the trunk connecting unit before starting the engine.
工程师在启动引擎之前必须断开车厢连接单元。
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3. The trunk connecting unit was designed to improve the comfort of passengers during long journeys.
车厢连接单元的设计目的是为了提高长途旅行中乘客的舒适性。