https://v.youku.com/v_show/id_XNzYyNTQzMDI0.html
中國計量院成立于1955年，是我國最高的計量科學研究中心和國家級法定計量技術機構。主要職責是：研究、建立國家計量基標準,實現國際互認；保持全國量值統一和準確可靠；開展計量科學和技術研究。
Founded in 1955, the National Institute of Metrology (NIM) is China’s national metrology institute (NMI) and the national technical center for legal metrology. Its major tasks include：developing and maintaining national measurement standards and realizing their international equivalence; ensuring the accuracy and reliability of measurement values across the country through verification and calibration services; and conducting research in fundamental and applied science areas in response to national needs.
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