资料来源 : pyDict

可变焦距的

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

Pancratic \Pan*crat"ic\, a. [Gr. ? all-powerful.] (Opt.)
   Having all or many degrees of power; having a great range of
   power; -- said of an eyepiece made adjustable so as to give a
   varying magnifying power.

Pancratic \Pan*crat"ic\, Pancratical \Pan*crat"ic*al\, a. [See
   {Pancratium}.]
   Of or pertaining to the pancratium; athletic. --Sir T. Browne