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GB/T 4103.15-2009
铅及铅合金化学分析方法 第15部分:镍量的测定 火焰原子吸收光谱法
Methods for chemical analysis of lead and lead alloys - Part 15: Determination of nickel content - Flame atomic absorption spectrophotometry
GB/T 23480.1-2009
Small hole high speed drilling electro-discharge machines - Part 1: Terminology and testing of accuracy
GB/T 23480.2-2009
Small hole high speed drilling electro-discharge machines - Part 2: Parameters
GB/T 19290.4-2009
发展中的电子设备构体机械结构模数序列 第2-2部分:分规范 25mm设备构体的接口协调尺寸 详细规范 插箱、机箱、背板、面板和插件的尺寸
Modular order for the development of mechanical structures for electronic equipment practices - Part 2: Sectional specification - Interface co-ordination dimensions for the 25 mm equipment practice - Section 2: Detail specification - Dimensions for subrac