资料来源 : pyDict

可变电感器

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

Variometer \Va`ri*om"e*ter\, n. [L. varius various + -meter.]
   (Elec.)
   An instrument for comparing magnetic forces, esp. in the
   earth's magnetic field.

资料来源 : WordNet®

variometer
     n : a measuring instrument for measuring variations in a
         magnetic field