Collection of airborne coal dust by water spray in a horizontal duct.
D000397:Air Pollution / Q000517:prevention & control*; D003031:Coal; D003032:Coal Mining / Q000592:standards*; D004391:Dust / Q000032:analysis / Q000517:prevention & control*; D004581:Electronics / Q000295:instrumentation; D004782:Environmental Health; D004787:Environmental Pollution / Q000517:prevention & control; D010316:Particle Size; D014867:Water / Q000032:analysis
D003031:Coal; D004391:Dust; D014867:Water