| Gb | Eng |
|---|---|
| 这些机器都是由电动机驱动的。 | The machines are driven by electric motors. |
| 绞车，起货机一种装有卷筒的固定的电动机驱动或手动的吊升机械，卷筒周围缠绕着与提升的重物相连的绳索 | A stationary motor-driven or hand-powered hoisting machine having a drum around which is wound a rope or chain attached to the load being lifted. |
| （同步电动机的）速度偏差同步电机运行速度的周期性变化 | The periodic variation in speed of a synchronous motor with respect to the current. |