Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Armstrong, F. E.

Coal mine dust incombustibles content analyzer using a gamma-ray backscatter technique Armstrong, F. E. - Washington Bureau of mines 1974 - 10 p. - RI 7946 .

Subjects--Topical Terms:
MINERIA
MINING

Subjects--Index Terms: EXPLOSIONES DE MINAS POLVOS DE MINA MINAS DE CARBON MINE EXPLOSIONS MINE DUSTS COAL MINES

Universal Decimal Class. No.: 622