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GB/T 19290.2-2003
发展中的电子设备构体机械结构模数序列 第2部分: 分规范 25 mm设备构体的接口协调尺寸
Modular order for the development of mechanical structures for electronic equipment practices--Part 2: Sectional specification--Interface co-ordination dimensions for the 25mm equipment practice
GB/T 7484-1987
Water quality--Determination of fluoride--Ion selective electrode method
GB/T 5009.143-2003
Determination of amitraz residues in vegetables,fruits,edible oil
GB/T 16529-1996
Splices for optical fibres and cables--Part 1:Generic specification--Hardware and accessories
GB/T 18722-2002
Graphic technology--Application of reflection densitometry and colorimetry to process control in graphic arts
GB/T 6559-1986
Screw thread shanks for thread forming screw--Metric coarse thread series