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economizer英英字典_economizer剑桥英语解释_economizer柯林斯英文解释_沉淀汉英词典
沉淀汉英词典

economizer

E 开头单词

柯林斯词典

    economizer (also economiser)

  • 1. N a device that uses the waste heat from a boiler flue to preheat the feed water 节约装置

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