短語詞組短語direct current differential transformer 直流差接變壓器current linear variable differential transformer 直流差動變壓器direct -current linear variable differential transformer 直流差動變壓器differential current transformer 差動電流互感器transformer current differential protection 變壓器電流差動保護differential protection current transformer 差動保護電流互感器DPCT Differential Protection Current Transformer 差動保護電流互感器 返回 current differential transformer