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关注：1
2013-05-23 12:21
求翻译：本计量器具溯源于国家计量基准是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
本计量器具溯源于国家计量基准
问题补充： |
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2013-05-23 12:21:38
The measuring instruments traceable to national measurement reference
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2013-05-23 12:23:18
This measurement instruments trace their roots back to national measurement benchmarks
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2013-05-23 12:24:58
This measurement appliance tracing in national measurement datum
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2013-05-23 12:26:38
This measuring instrument traceability to national metrology benchmarks
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2013-05-23 12:28:18
正在翻译，请等待...
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