2359| 7
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测量设备的校准、检定(验证)怎么做 |
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发表于 10-19 05:55:33
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发表于 10-19 08:45:08
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点评
你没搞清楚检定和校准的区别
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发表于 10-23 18:39:18
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发表于 10-24 20:45:14
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