The size of reversing electric potential may be changed and equilibrium between reactance electrical potential and reversing electrical potential may be broken by manual.
通过人为改变换向电势大小，打破电抗电势与换向电势平衡。
The size of reversing electric potential may be changed and equilibrium between reactance electrical potential and reversing electrical potential may be broken by manual.
通过人为改变换向电势大小，打破电抗电势与换向电势平衡。
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