fractionation [ˌfrækʃən'eɪʃən]

例句:

• There are two ways to receive hypo-fractionation.
  来自WSJ
• These early observations have been supplemented with results from chemical fractionation.
  这些早期的观察曾为化学馏分的结果所增补.
  
• The second general problem of cell fractionation is the contamination of each fraction by others.
  细胞组分分离的第二个普遍问题是各组分的相互掺杂.
  
• The effects of fractionation are dependent on total doses and on fractionation procedures.
  分次照射的效应取决于总计量和分次方法.
  
• "The net effect on Earth is that there is essentially no fractionation the two cancel each other out, " Sharp said.
  来自MSN