共 5 条
[1]
QUANTITATIVE-ANALYSIS OF THIN SPECIMENS
[J].
JOURNAL OF MICROSCOPY-OXFORD,
1975, 103 (MAR)
:203-207
[2]
MACKOVSKY MT, 1968, COAL COAL BEARING ST
[3]
MCGILL RJ, 1981, QUANTITATIVE MICROAN, P30
[4]
RAASK E, 1968, J I FUEL, V41, P339
[5]
1972, PFA UTILISATION