95 / | HD | GAS SEPARATION: PROCESSES |
57 | DF | ELECTRIC OR ELECTROSTATIC FIELD (E.G., ELECTROSTATIC PRECIPITATION, ETC.) {9} |
63 | DF | .~ And nonelectrical separation of fluid mixture {5} |
64 | .~.~ Liquid addition to gaseous fluid mixture {1} | |
65 | DF | .~.~.~> Liquid addition precedes electrical precipitation {1} |