举一反三
- Battery and mobile pack charger are allowed in the .
- Battery and mobile pack charger are allowed in the checked luggage
- Are the battery and the mobile pack charger allowed in the checked luggage?
- A battery pack contains many batteries, wired in series to create hundreds volts.（ ）
- It uses a large battery pack to store the electricity that powers the electric motor to move the car．
内容
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When the engine, generator and battery work together to supply right amount of electric power to the electric motor, or the engine and the generator charge the battery pack, it operates in series mode．
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Nowadays, the electric motor, generator and battery pack all work together in a car on behalf of the hybrid concept．
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The electric motor gets its electric power from a high-voltage battery pack which is recharged by plugging into standard 220-volt outlet．
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At low speeds where energy usage is minimal, the full hybrid car uses the battery pack and electric motor to operate effectively in all-electric mode without emissions．
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A plug-in hybrid, also called plug-in hybrid electric vehicle (PHEV), has a large battery pack that can be recharged directly from household electricity or a charging pile in public place by plugging into an electric outlet (see Fig.8-5) ．