名词
中文翻译：主发电机
同义词：
['main generator', 'main transformer']
例句：
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1.The main alternator is responsible for powering the entire building.
主发电机负责为整个建筑供电。
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2. The main alternator needs to be checked regularly to ensure it's functioning properly.
主发电机需要定期检查，以确保其正常工作。
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3. Main alternators are often used in large industrial facilities to generate electricity.
主发电机通常用于大型工业设施中产生电力。