transformersn.变压器名词transformer的复数形式.transformern.变压器transformer enterprise变压器企业transformer connection变压器接线组transformer locomotive变流机车transformer protection变压疲护transformer inductance变压器电感transformer insulation变压器绝缘transformer efficiency变压器效率transformer center tap变压器中点抽头transformer monitoring变压器监测transformer substation变电所