YD T 4518.2-2023 集成通信功能的复合型设备的电磁兼容性要求和测试方法 第2部分：用于工业环境中的设备.pdf

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YD T 4518.1-2023 集成通信功能的复合型设备的电磁兼容性要求和测试方法 第1部分：用于居住、商业和轻工业环境中的设备.pdf

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