charge density wave cdw 电荷密度波
charge-density-wave cdw 电荷密度波
space-charge wave 空间电荷波
charge density wave 电荷密度波
space-charge wave tube 空间电荷波管
space-charge wave theory 空间电荷波理论
That's not a positive and negative charge, that's actually a phase, and that arises from the wave equation.
这不是指正负电荷,它是指相位,这是从波函数中得来的。
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