GB/T 12668.901-2021 调速电气传动系统第9-1部分;电气传动系统、电机起动器、电力电子设备及其传动应用的生态设计采用扩展产品法（EPA）和半解析模型（SAM）制定电气传动设备能效标准
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更新时间 : 2023-12-05 09:48:44
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