emergency power supply unit

例句：

1. 1. The emergency power supply unit is crucial for ensuring the continuity of critical services during emergencies.
   应急电源供应装置在紧急情况下对于确保关键服务连续性至关重要。
2. 2.The engineers worked tirelessly to ensure that the emergency power supply unit was functioning properly.
   工程师们不辞辛劳地工作，以确保应急电源供应装置正常工作。
3. 3.The team successfully tested the emergency power supply unit before the storm hit, demonstrating its reliability in such situations.
   在暴风雨来临之前，团队成功地测试了应急电源供应装置，证明了其在此类情况下的可靠性。