abstract norm [计] 抽象范数
- Abstract: This paper presents a full text of Standard Test Method for Classification of Film Systems for Industrial Radiography published by ASTM and points out its importance in the promotion of the development of industrial
文摘:本文介绍了美国试验与材料学会制订的关于工业射线照相用胶片系统分类的测试方法标准,并指出了其对促进我国工业射线胶片和射线照相技术的发展,与国际接轨,达到世界先进水平的重要性。
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