(+)USB通用接点
USB-GPIB General Purpose Interface
10kV系统中性点接地
the grounded neutral system of 10 kV power network
TN-S 单点接地
TN-S single point ground connection
TV两点接地
two-points-to-earth faults of potential transformer
背面点接触太阳电池
point contact concentrator (PCC) solar cells
变压器多点接地
multipoint earthing of transformer