perpetual motion machine 永动机 ; 永念头 ; 按照能量守恒定律
The Perpetual Motion Machine 永动机
Making energy like the sun does might too cheap to meter or as uneconomical as a perpetual motion machine.
像太阳一样产生能量可能会太便宜以至于无法计费，或是像永动机一样太不合算。
He is adamant that this is not a perpetual motion machine, and does not violate the law of conservation of momentum because different reference frames apply to the drive and the waves within it.
他坚持认为这并非永动机，也没有违反能量守恒定律，因为驱动器和里面的微波使用不同的坐标系。
That would that would give rise to a perpetual motion machine, breaking of the second law. It can't happen.
否则就会使，得永动机出现，打破第二定律那是不可能的。
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