return core core puller
core barrel with rubber core container
cumulative weight percent undersize
cumulative weight undersize fraction
undersize
尺寸过小
过筛物
尺寸不足
低应力反复处理
筛下产品
小型的
筛底料
undersize bearing insert
Core-periphery Patterns
(Ag)core·(Au)shell composite nanoparticles