GB/T 26068-2018
ActiveTest method for carrier recombination lifetime in silicon wafers and silicon ingots—Non-contact measurement of photoconductivity decay by microwave reflectance method
硅片和硅锭载流子复合寿命的测试 非接触微波反射光电导衰减法
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Method for measuring the average grain size of sintered bar and rod of tungsten molybdenum and alloys
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Method for measuring the distribution of the powder size of tungsten and molybdenum method by the balance for the fall of the particles
GB/T 4194-1984
Creep testing,high temperature treatment and metallographic examination of the tungsten wires