资料来源 : pyDict

推进者,叶轮

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

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

资料来源 : WordNet®

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