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1.The new A.C. brushless synchronous generator has significantly improved the efficiency of our factory's air conditioning system.
新型无刷同步发电机大大提高了我们工厂空调系统的能效。
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2. The engineer used a special tool to remove the old A.C.brushless synchronous generator and install the new one.
工程师使用特殊工具移除旧的无刷同步发电机，并安装新的。
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3. The A.C. brushless synchronous generator is responsible for providing power to the entire building, ensuring that itremains cool and comfortable throughout the day.
无刷同步发电机负责为整个建筑提供电力，确保整日保持凉爽舒适。