標(biāo)題: ASTM D 5263-1993 堿萃取時煙煤中氧化過程相對等級測量的... [打印本頁] 作者: 兌水 時間: 2009-10-15 16:01 標(biāo)題: ASTM D 5263-1993 堿萃取時煙煤中氧化過程相對等級測量的... D5263-93(2001) Standard Test Method for Determining the Relative Degree of Oxidation in Bituminous Coal by Alkali Extraction