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【国外标准】 Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays; English version ETS 300640:1996
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2025-04-30
- DIN ETS 300640
- 现行
- 定价： 316元
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标准简介适用范围：
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标准号：
DIN ETS 300640
标准名称：
Human Factors (HF) - Assignment of alphabetic letters to digits on standard telephone keypad arrays; English version ETS 300640:1996
英文名称：
标准状态：
现行-
发布日期：
2001-04-01 -
实施日期：
出版语种：
- 其它标准
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