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Electric cars and power-assisted bicycles?
1. electric vehicle: refers to a vehicle driven by a motor and powered by a battery.

2 mopeds and mopeds should be motorcycles or electric bicycles with a displacement of less than 50 ml. A moped needs a driver's license. An electric bicycle with a weight of more than 40 kilograms and a speed of more than 20 kilometers per hour is called a light electric motorcycle or an electric motorcycle, which belongs to a motor vehicle and also needs a driver's license.

3. The moped comprises a frame, a front wheel, a rear wheel, a five-way valve installed at the bottom of the frame and an engine, wherein the frame of the moped consists of interconnected hollow pipes filled with fuel. The top of the front and rear ends of the frame are respectively provided with an oil filling hole and an exhaust hole, and an oil pipe is communicated between the lower part of the frame and the engine. The moped of the utility model is simple in structure, small in volume, light in weight, safe and reliable, and very beautiful.

Mopeds are also called "dual-purpose vehicles". A two-wheeled vehicle that can be driven by both human power and engine. Because the cylinder volume does not exceed 36 ml, gasoline is not completely burned, and the gas discharged from it will cause certain air pollution, so it will be eliminated day by day.