Particle UP小品词-UP-particlen.颗粒；微粒；极小量；质点；粒子；[语]小品词particle recovery颗粒截留particle impactor粒子冲击器particle sampling粒子采样particle charging粒子充电particle assembly颗粒堆积particle behavior粒子特性particle counting粒子计数PARTICLE BLIZZARD暴风雪粒子particle tracking粒子追踪particle sticking物料粘结