single-phase double-speed motor

例句：

1. 1. This new model ofsingle-phase double-speed motor ismore energy-efficient than its predecessors.
   这款新型单相双速电机比其前代产品更节能。
2. 2. The engineerdesigned the single-phase double-speedmotor to meet the needs of a largenumber of users.
   这位工程师设计了这款单相双速电机，以满足大量用户的需求。
3. 3. Thesingle-phase double-speedmotor is widely used in various industriesdue to its high efficiency and low noise.
   由于其高效能和低噪音，这款单相双速电机在各行业中得到了广泛应用。