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- ITU-T O.41 Psophometer for use on telephone-type circuits

【国外标准】 Psophometer for use on telephone-type circuits
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2025-06-10
- ITU-T O.41
- 现行
- 定价: 无文本
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适用范围:
暂无
标准号:
ITU-T O.41
标准名称:
Psophometer for use on telephone-type circuits
英文名称:
标准状态:
现行-
发布日期:
2015-10-01 -
实施日期:
出版语种:
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