dust elimination and purification for flue dust
Bayard-Alpert ionization gauge (B-A gauge)
Brown and Sharpe wire gauge {= B&S wire gauge}
track gauge level gauge
Accumulated charge on dust layer
achievement of dust dischange standard
acidic leaching solution of steelmaking flue dust
acoustic wave dust cleaning
administration of dust emission
adsorbing dust quantity
AEOLIAN-DUST DEPOSITION