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前言中国计量技术与仪器制造学会代表团于1976年4月27日离京,赴英国及西德参加国际计量联合会第7届大会(伦敦)及光子探测器第7次国际讨论会(西德的不伦瑞克),并在会前会后备用一周时间对大力值计量标准和铯原子钟进行了专业考察,于6月3日回国。大力值计量标准方面,在英国对坦厅顿的国家物理研究所(NPL)、伯明翰的埃弗累公司(W.&T.Avery)进行了考察和参观,在西德对不伦瑞克的联邦技术物理研究院
Foreword The delegation of China Institute of Metrology Technology and Instruments departed on April 27, 1976, went to Britain and West Germany to attend the 7th International Conference of Metrology (London) and the 7th International Symposium on Photon Detectors (West Germany Of Brunswick) and conducted a professional inspection of strong value metrology standards and cesium atomic clocks one week after the pre-conference meeting, returning on June 3. In terms of strong metrology standards, visits and visits were made in the UK to the National Physical Institute (NPL) in Tanzania, W. & T.Avery in Birmingham, and to the Federation of Brunswick in West Germany Institute of Technical Physics