作业帮英语翻译Why is electricity so widely used?It is because electric
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英语翻译
Why is electricity so widely used?It is because electricity can be transmitted over long distances.Besides,it can be easily changed into other forms of energy.For example,electrical energy may be turned into mechanical energy by an electric motor and into light energy in a lamp.Electricity is convenient to use.With a switch,you can turn electricity on or off easily.When the switch is on,the circuit is closed and electricity goes through.When the switch is off,the circuit is open and electricity does not go through.
Why is electricity so widely used?It is because electricity can be transmitted over long distances.Besides,it can be easily changed into other forms of energy.For example,electrical energy may be turned into mechanical energy by an electric motor and into light energy in a lamp.Electricity is convenient to use.With a switch,you can turn electricity on or off easily.When the switch is on,the circuit is closed and electricity goes through.When the switch is off,the circuit is open and electricity does not go through.
为什么电的用途这么广泛呢?因为电可以长距离传输,而且它可以很容易的转化为其它形式的能量.比如.一台马达可以把电能转化为机械能.电灯可以把电能转化为光能.电用起来是那么方便.有一个开关,你就可以很轻松的通电断电.当开关开着的时候,电路是闭合的,就通电.开关关的时候,电路是断开的,电就无法通过.
英语翻译Why is electricity so widely used?It is because electric
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