sieves

例句:

• This thesis emphasized on the preparation of mesoporous molecular sieves MSU.
  中孔分子筛MSU是当今认为在稳定性方面很有发展前途的一种催化新材料.
  
• The mesoporous silica molecular sieves Zr - MCM - 41 were synthesized in ethylenediamine.
  以乙二胺为碱性介质合成了Zr-MCM-41介孔分子筛.
  
• The development of aluminophosphate molecular sieves was reviewed.
  介绍了目前磷酸铝分子筛合成方法的发展.
  
• We've got colanders, sieves, stands, hundreds of wooden spoons.
  来自WSJ
• These submarine sieves collect the natural 'fall' of colonising scallop larvae, called spat.
  来自BBC