this method is used in development of nb-bearing steel and determination of controled sample of direct-reading spectrometer by furnace with fast and simple operation and accurate result.
方法被用于含铌品种钢的开发和炉前直读光谱控制样品的定值。该方法简单、快速,结果準确。
the domestic and foreign nodular graphite cast iron standard samples were analyzed with vacuum direct-reading spectrometer and were applied in the routine analysis.