筛

• Technique specification for fine air screen seed cleaner
  风筛式种子清选机.技术条件
• - i have a sieve . . . ah , screw it . - who uses this
  -我有滤筛。 。 。算了-谁用过这个？
• Screening and management of gestational diabetes mellitus
  妊娠期糖尿病的筛查与处理
• Glossary of terms for test sieves and test sieving
  试验筛和试验筛滤术语词汇
• The dzs electromagnetic high . frequency vibrating screen
  Dzs型电磁振动高频筛
• Discussion on the protection toward trade unions
  对残留农药进行全面筛查应用