They can use energy from the sun or can be hand-powered.
它们可以使用太阳能或手动供能。
A novel approach that USES both heat and light from the sun to make electricity could potentially double the output of solar panels (a New Way to use the sun's Energy).
这种同时利用太阳热力和光线来发电的新方法，可能会让太阳能电池板的电力输出增加一倍(参见“使用太阳能的新方式”一文)。
Most of the energy we use comes from the sun.
我们使用的大多数能源来自于太阳。
We are making use of energy from the sun in many ways.
我们正在多方面利用太阳能。
We are making use of energy from the sun in many ways.
我们正在多方面利用太阳能。
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