名词
中文翻译：预冷却剂
同义词：
['预冷剂、预冷剂，预冷剂例句：1. The precoolant is a chemical that helps to cool down the engine before it starts.（预冷却剂是一种化学物质，在发动机启动前帮助冷却。）']
例句：
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1. The precoolant is a chemical that helps to cool down the engine before it starts.
预冷却剂是一种化学物质，在发动机启动前帮助冷却。
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2. The precoolant system is designed to prevent overheating during the start-up process.
预冷却系统设计用于防止启动过程中过热。
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3.In this case, the precoolant was not enough to handle the high temperatures generated by the engine.
在这种情况下，预冷却剂不足以处理发动机产生的高温。