为了搞好全国角度量值的统一,中国计量科学研究院受国家计量总局的委托于1980年对全国各省、市、自治区计量部门及其它有关计量部门就多面棱体的检定技术进行了一次比对考核。经比对考核后,凡具备检定条件的计量部门,报请国家计量总局颁发授权检定证书。 In order to do a good job of unifying the measurement of the national angle, China Institute of Metrology conducted a comparison on the verification technique of polygonic prism with the commissioning of the National Bureau of Metrology in 1980 on the measuring departments of various provinces, municipalities and autonomous regions in China and other relevant metrological departments Assessment. After the comparison examination, where have the test conditions of the measurement department, submitted to the State Administration of Measurement issued a certificate of accreditation.