名词
中文翻译：紧急电源源
同义词：
['critical source', 'emergency supply例句：1. The hospital has a critical source of clean water for the patients.（医院有为病人提供清洁水源的紧急供应。）']
例句：
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1. The hospital has a critical source of clean water for the patients.
医院有为病人提供清洁水源的紧急供应。
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2.In emergencies, we need to rely on our emergency supplies.
在紧急情况下，我们需要依靠我们的应急物资。
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3. The fire department was called to provide an emergency source of water for the firefighters.
消防部门被叫来为消防员提供紧急水源。