资料来源 : pyDict

交互的,交替的交替函数

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

Alternant \Al*ter"nant\, a. [L. alternans, p. pr.: cf. F.
   alternant. See {Alternate}, v. t.] (Geol.)
   Composed of alternate layers, as some rocks.