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He says changing the mechanical kinetic energy into electrical energy is easy.
他说,机械动能转化为电能是非常容易的。
youdao
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Notice that not all mechanical energy is kinetic energy.
要注意,并非所有的机械能都是动能。
youdao
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Notice that not all mechanical energy is kinetic energy.
要注意,并非所有的机械能都是动能。
youdao