rail conditioning unit

例句：

1. 1. The rail conditioning unitis responsible for maintaining the temperature of thetrain's interior.
   铁路调温器单元负责保持火车内部的温度。
2. 2. The engineer needsto check the condition of the rail conditioningunit before starting the engine.
   工程师在启动引擎之前需要检查铁路调温器单元的状态。
3. 3. The rail conditioning unit is an essentialcomponent in preventing derailments during winterweather conditions.
   铁路调温器单元是防止冬季恶劣天气导致脱轨的关键部件。