名词
中文翻译：紧急电源电池
同义词：
['emergency power supply', 'emergency power pack']
例句：
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1. The car's engine won't start because there's an emergency battery issue.
汽车引擎无法启动，是因为有紧急电源问题。
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2.We need to replace the battery in the generator as soon as possible to avoid a power outage.
我们需要尽快更换发电机的电池，以避免停电。
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3. The fire department used emergency batteries to power their lights during the night rescue operation.
消防部门在夜间救援行动中使用了紧急电源电池来供电。