资料来源 : pyDict

球面几何学,球面三角学

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

Spherics \Spher"ics\, n. (Math.)
   The doctrine of the sphere; the science of the properties and
   relations of the circles, figures, and other magnitudes of a
   sphere, produced by planes intersecting it; spherical
   geometry and trigonometry.