straight polarity是什么意思

用法例句

Proves by actual measurements made with positive and reverse wiring of electromagnetic current transformer that positive wiring is more sensitive than reverse wiring in judging if an electromagnetic transformer is subject to dampness.

通过对电磁式电流互感器采用正接线和反接线测量其tanδ的分析 ,阐明了正接线比反接线对判断电磁型电流互感器受潮较灵敏。