资料来源 : pyDict

方位仪; 罗经刻度盘; 哑罗经

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

Pelorus \Pe*lo"rus\, n. [After Pelorus, said to have been
   Hannibal's pilot when he left Italy.] (Navig.)
   An instrument similar to a mariner's compass, but without
   magnetic needles, and having two sight vanes by which
   bearings are taken, esp. such as cannot be taken by the
   compass.