标题: BS EN 12543-1-1999 [打印本页] 作者: liuxilin1215 时间: 2013-12-25 13:35:38 标题: BS EN 12543-1-1999
BS EN 12543-1-1999 Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 1: Scanning method