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16.下列情况属于自校准的是( A C )å_;ßÁObbs.3c3t.comÑ
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A. 试验室人员对自用试模的校准å_;ßÁObbs.3c3t.comÑ
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B. 全站仪开机时的设备自我校准å_;ßÁObbs.3c3t.comÑ
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C. 设备厂家对提供的无溯源证书的标准档品的校准å_;ßÁObbs.3c3t.comÑ
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D. 试验室对设备进行期间检查å_;ßÁObbs.3c3t.comÑ
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能不能解释下å_;ßÁObbs.3c3t.comÑ
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