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It is a free electron so there is no potential energy to be accounted for.
对于自由电子，因此没有什么势能。
youdao
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This property have an effect on performance of the free electron laser.
这种摆动性质影响着自由电子激光的特性。
youdao
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This property have an effect on performance of the free electron laser.
这种摆动性质影响着自由电子激光的特性。
youdao