Isbn: 9787506690461 - 标准物质国家计量技术规范和国家标准汇编 中国标准出版社,全国标准物质计量技术委员会 中国标准出版社 9787506690461 (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2018-07-01 Pages: 339 Language: Chinese Publisher: China Standard Press In recent years. China's reference materials have developed very rapidly. and its applications cover various key areas such as industry. agriculture. science and technology. and are engaged in standards. The number of technicians and units for material development and production has also gradually increased. In order to better guide the standard substances.…