single-pole distribution switch 单极分路开关

magnetic pole distribution [电磁] 磁极分布

THREE-PHASE POLE-MOUNTED DISTRIBUTION TRANSFORMER 三相柱上式配电变压器

Distribution Enclosed Single-Pole Air Switches 配电用封装式单极空气开关

pole distribution 极点分布

SINGLE-PHASE POLE-MOUNTED DISTRIBUTION TRANSFORMER 供应单相柱上式变压器 ; 单相柱上式配电变压器

Zero pole distribution 零极点模型

zero-pole point distribution 零极点分布

pole-mounted distribution transformer 杆架式配电变压器