世界资料网论坛

标题: BS EN 50332-1-2013 Sound system equipment: Headphones and earphones associated w [打印本页]

作者: liuxilin1215    时间: 2015-11-21 12:44:58     标题: BS EN 50332-1-2013 Sound system equipment: Headphones and earphones associated w

BS EN 50332-1-2013 Sound system equipment: Headphones and earphones associated with personal music players — Maximum sound pressure level measurement methodology Part 1: General method for "one package equipment"

[attach]87933[/attach]

作者: admin    时间: 2015-11-22 11:54:11

谢谢您的分享,金币已奖励!




欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) Powered by Discuz! X2.5