標(biāo)題: ASTM E 2294-2003 通過(guò)火試金重量分析法修正金屬軸承礦石,濃... [打印本頁(yè)] 作者: 兌水 時(shí)間: 2009-11-17 20:37 標(biāo)題: ASTM E 2294-2003 通過(guò)火試金重量分析法修正金屬軸承礦石,濃... E2294-03 Standard Practice for Proof Silver Corrections in Metal Bearing Ores, Concentrates and Related Materials by Fire Assay Gravimetry