universal l motor通用电动机
universal motor works美庆汽车公司
universal motor west bank交直流两用马达
Motor universal两用马达;通用电动机
universal fractional-horsepower commutator motor万能微型换能器电动机
N（名词） an electric motor capable of working on either direct current or single-phase alternating current at approximately the same speed and output 通用式电动机