zxzxzxzx 发表于 2015-9-22 15:39:58

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“



admin 发表于 2015-9-22 17:03:30

谢谢您的分享,金币已奖励!
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