alpha particle

Alpha-Alpha

alpha radiation

radioactive alpha and beta particles

alpha-trinitrotoluene

ALPHA / ALFA

alpha(-active) emitter

alpha-survey meter

beta particle

particle beam

particle detector

particle-beam weapons

particle board

salt particle

sand particle

dust filter / dust shield, particle filter

dust particle

dust shield / dust filter, particle filter

particle filter / dust shield, dust filter

wave-motion particle orbital speed

soot particle