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【国外标准】 Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements (IEC 29/952/CDV:2017); German version EN 60118-4:2015/prA1:2017
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2025-06-05
- DIN EN 60118-4/A1
- 废止
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标准简介适用范围：
暂无
标准号：
DIN EN 60118-4/A1
标准名称：
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements (IEC 29/952/CDV:2017); German version EN 60118-4:2015/prA1:2017
英文名称：
标准状态：
废止-
发布日期：
2001-10-01 -
实施日期：
出版语种：
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