grain size classification

同义词释义

1)grain size classification,粒度分类2)Multi-granularity classification,多粒度分类3)grain-size classification,粒度分类（地）4)coal classification by size,煤按粒度分类法5)size separation,按颗粒度分类6)size,粒度7)particle size,粒度8)grain size,粒度9)granularity,粒度10)grain-size,粒度