transformersn.变压器名词transformer的复数形式.transformern.变压器transformer starting failure主变启动失灵transformer with tap changer带有抽头变换器的变压器transformer tatio measurement变压比测定transformer substation system变电系统transformer undercurrent trip变压器欠流跳闸装置transformercoupled oscillator变压器耦合振荡器transformer ratio measurement变压比测定transformer backup protection变压器后备保护transformer secondary voltage变压器次级电压transformer coupled converter变压器耦合电感