資料來源 : pyDict

分度尺,作圖器,原圖放大圖器

資料來源 : Webster's Revised Unabridged Dictionary (1913)

Diagraph \Di"a*graph\, n. [Gr. ? to draw: cf. F. diagraphe. See
   {Diagram}.]
   A drawing instrument, combining a protractor and scale.