权威例句
Multistage micronic in-line after-air filterThe influence on filtration efficiency of melt-blown air filter material after electrets treatmentInvestigation and actions after an internal air compressor filter fireALPHA ACTIVITY ON AIR FILTER SAMPLES COLLECTED AFTER THE WINDSCALE INCIDENTAerosol Contamination before and after an Air Filter DeviceInfection Risk Increase after Joint Surgery; WARNING: Air Filter in George Eliot Operating Theatre FaultyStudy on Characteristics of Reverse-Blowing and Self-Cleaning Filtration of Air Filter on Inlet of Air CompressorEfficiency of air filter sets for the prevention of airborne infections in laboratory animal housesAIR FILTERResearch in influence of engine air filter replacement periodicity