reference modelreference nodereference noisereference phasereference pointreference pressurereference resistancereference stationreference stimulusreference temperaturereference timereference voltagereference volumereference whitereference white levelrefinementreflectreflectedreflected codereflected imagereflected impedancereflected ratio frequencyreflected resistancereflected wavereflecting curtainreflecting targetreflectionreflection amplifierreflection coefficientreflection coefficient mismatch factor reflection factor transition factorreflection dopplerreflection electron diffractionreflection errorreflection factorreflection gratingreflection interferencereflection intervalreflection lawreflection lossreflection ratioreflection seismographreflectionsreflectivereflective powerreflective projection tvreflective surfacereflectivityreflectometerreflectorreflector aerial