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

Countergage \Coun"ter*gage`\ (-g[=a]j`), n. (Carp.)
   An adjustable gage, with double points for transferring
   measurements from one timber to another, as the breadth of a
   mortise to the place where the tenon is to be made. --Knight.