polex肛上板polen.杆；柱；极点v.(用杆)支撑Pole.n.波兰人pole_cup squeeze parts杆-杯形挤压件pole-teeth cylinders杆齿滚筒pole-changeable type变极机构pole-board electrode柱-板电极pole-type substation架杆式变电站,杆塔式变电所pole' s moving-rangepoleless transposition无杆交叉pole-changing switch换极开关pole mounted oil switch电杆上油开关pole-changing control变极调速