Power system use synchronous machines for generation of electricity, in other words, synchronous generators form the principal source of electricenergy in power systems.
电力系统使用同步器来发电，换句话说，同步发电机是电力系统中电能的主要来源。
2
With the decrease of petrol source all over the world, it is inevitable that the petrol energy vehicle will be replaced by vehicles with electric energy or burning substantial fuels.
全球石油资源的不断减少，使电动汽车、代用燃料汽车最终取代燃油汽车的趋势不可逆转。
3
Abstract: electric tourist car is a vehicle energy storage device (battery) as the power source, the motor driven vehicle.