資料來源 : pyDict

推進者,葉輪

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

Impeller \Im*pel"ler\, n.
   One who, or that which, impels.

資料來源 : WordNet®

impeller
     n : the blade of a rotor (as in the compressor of a jet engine)