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标题: EN50332-1 [打印本页]

作者: zxzxzxzx 时间: 2015-9-22 15:39:58 标题: EN50332-1

本帖最后由 zxzxzxzx 于 2015-9-22 15:49 编辑

EN50332-1:Sound system equipment: Headphones and earphones associated with portable audio equipment - Maximum sound pressure level measurement methodology and limit considerations - Part 1: General method for "one package equipment“

作者: admin 时间: 2015-9-22 17:03:30

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