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GB/T 22662.5-2008
氟钛酸钾化学分析方法 第5部分:钙含量的测定 火焰原子吸收光谱法
Chemical analysis methods of potassium fluotitanate - Part 5: Determiantion of calcium content - Flame atomic absorption spectrometric method
GB/T 22543.1-2008
Instrument for dam monitoring - Exte nsion line gauge - Part 1: Step motor type extension line gauge
GB/T 4067-1999
Testing method for electrical resistance-temperature characteristic parameters of metallic materials
GB/T 4067-1999
Testing method for electrical resistance-temperature characteristic parameters of metallic materials
GB/T 9425-1988
Blank detail specification for semiconductor inte-grated circuit operational amplifiers
GB/T 10063-1988
Simplified methods for the calculation of load capacity of involute cylindrical gears for general machines