“国家计量标准和国家计量院签发的校准证书的相互承认”协议（Ｍｕｔｕａｌｒｅｃｏｇｎｉｔｉｏｎｏｆｎａｔｉｏｎａｌｍｅａｓｕｒｅｍｅｎｔｓｔａｎｄａｒｄｓａｎｄｃａｌｉｂｒａｔｉｏｎｃｅｒｔｉｆｉｃａｔｅｓｉｓｓｕｅｄｂｙｎａｔｉｏｎａｌｍｅｔｒｏｌｏ... “Mutual recognition of national standards and calibration certificates issued by the National Institute of Metrology” (Mutualrecognitionofnationalmeasurementstandardsandcalibrationrtificatesissuedbynationalmetrolo ...