资料来源 : pyDict

三分法,三断法,三相法

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

Trichotomy \Tri*chot"o*my\, n. [Gr. tri`cha threefold, in three
   parts + te`mnein to cut or divide: cf. F. trichotomie.]
   Division into three parts.