EntityQ217236· pop 12· linked from 212 articlesworking fluidSign in to savegas or liquid used to transfer force, motion, or mechanical or thermal energyConnectionsflued boilerEntitycompressorEntitychlorofluorocarbonEntityhydraulic machineEntitywater-tube boilerEntityhistory of the steam engineEntityWatt steam engineEntityfire-tube boilerEntitywaterEntityheliumEntityforceEntitygasEntitytemperatureEntityInternational Standard Book NumberEntityliquidEntityrefrigeratorEntityatmosphere of EarthEntityheatEntitypressureEntitymotionEntityCategoriesEnginesFluid mechanicsThermodynamics