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

Polytungstic \Pol`y*tung"stic\, a. (Chem.)
   Containing several tungsten atoms or radicals; as,
   polytungstic acid.

   {Polytungstic acid} (Chem.), any one of several complex acids
      of tungsten containing more than one atom of tungsten.