pilot spool

pilot spool area

spool chamber

pilot chamber

CS-chamber (= chamber saturation chamber)

chamber saturation chamber (= CS-chamber)

licenced pilot [= licensed pilot]

pilot reform; reform experimentation; pilot restructuring enterprise

cloud chamber expansion chamber

expansion chamber cloud chamber

HBO chamber hyperbaric oxygen chamber

sandwich chamber (= S-chamber)

S-chamber ( = sandwich chamber)

vacuum drying chamber and freeze drying chamber

accumulator spool

actuator spool

actuator spool deadband width

adaptor spool

affected control valve compensator spool