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针对城市照明系统，设计了一种基于交流斩波技术的新型城市照明节电器。
A new city lighting energy saver based on AC chopper technology for city lighting system was designed.
youdao
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针对城市照明系统，设计了一种基于交流斩波技术的新型城市照明节电器。
A new city lighting energy saver based on AC chopper technology for city lighting system was designed.
youdao