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-range
poleless 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