
【国外标准】 Electrical characteristics for single-current interchange circuits controlled by contact closure
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2025-06-10
- ITU-T V.31
- 现行
- 定价:
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适用范围:
暂无
标准号:
ITU-T V.31
标准名称:
Electrical characteristics for single-current interchange circuits controlled by contact closure
英文名称:
标准状态:
现行-
发布日期:
2025-11-01 -
实施日期:
出版语种:
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