名词
中文翻译：外部冷却器
同义词：
['external heat exchanger', 'external air conditioner']
例句：
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1. The externalcooler is designed to keep the room cool during summer.
这个外部冷却器设计用来在夏天保持房间凉爽。
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2. The engineer used an external cooler to cool down the engine oil.
工程师使用了一个外部冷却器来冷却发动机油。
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3. The external cooler was installed in the factory to prevent the workers from overheating.
工厂安装了外部冷却器以防止工人过热。