资料来源 : pyDict

分别,使分馏

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Fractionate \Frac"tion*ate\, v. t.
   To separate into different portions or fractions, as in the
   distillation of liquids.

资料来源 : WordNet®

fractionate
     v 1: separate into constituents or fractions containing
          concentrated constituents
     2: obtain by a fractional process