GB/T 22779-2026
液晶式石英钟
Liquid crystal displaying quartz clocks
- 实施日期
- 2027-02-01
- ICS 分类
- 39.040.20
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 70,494 条
GB/T 22779-2026
Liquid crystal displaying quartz clocks
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