exhaustexhaust chuteexhaust fanexhaust gasexhaust pipeexhaust trafficexit direction signexit gasexit gradientexit rampexit ramp signexit ramp terminalexit transitionexiting trafficexothermicexothermic reactionexpandexpanded blast furnace slagexpanded clayexpanded metalexpanded polystyreneexpanded slateexpanding agentexpanding cementexpanding clayexpanseexpansibilityexpansionexpansion bearingexpansion boltexpansion jointexpansion loopexpansion of concreteexpansion valveexpansive cementexpansive cement concreteexpansive forceexperimentexperimental basinexperimental methodexperimental stationexperimentationexploderexplorationexploreexplorerexplosionexplosion proofexplosiveexplosive loading