名词
中文翻译：冷却器
同义词：
['cooling system', 'heat exchanger']
例句：
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1. The engine needs to be cooled down before it can start.
发动机在启动前需要冷却。
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2. The water in the cooling system is circulated through a pump.
冷却系统的水通过泵循环。
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3.The engineers installed a new cooling system for the aircraft.
工程师为飞机安装了新的冷却系统。