电真空器件及电光源用钨、钼材料电阻率的测试方法
Method for the determination of the resistivity of tungsten and molybdenum used in electric light sources and vacuumtubes
1984-03-09
GB/T 4193-1984
电真空器件及电光源用细钨丝、钼丝和薄带密度的测试方法
Method for measuring the density of the fine wire and ribbon of tungsten and molybdenum used in electric light sources and vacuumtubes