Transformer.大型变压器transformern.变压器transformer differential relay变压器差动保护transformer and bus protection变压器和母线保护transformer coil winding paper变压器线圈缠绕用纸transformer ratio-arm bridge变量器比率臂电桥transformer coupling oscillator变压器耦合振荡器Transformer with amorphous core非晶合金变压器transformer-secondary voltage变压器次级电压transformer-coupled amplifelr变压器耦合放大器transformer winding deformation变压器绕组变形transformer electromotive force变压器电动势,变压歧动势