pole-piece lamination极靴铁芯片
pole-piece spreader接点研磨器
pole-piece极部;磁极铁芯
electromagnetic pole-pieceU形电磁铁
pole-piece rolling equipments电池极片轧制设备
double pole-piece magnetic head双极磁头
single-pole-piece magnetic head单极磁头;翻译
single pole-piece magnetic head单极块磁头
double-pole-piece magnetic head双极靴磁头
N（名词） a piece of ferromagnetic material forming an extension of the magnetic circuit in an electric motor, etc, used to concentrate the magnetic field where it will be most effective 电磁极片 [electrical engineering]