A higher harmonic wave filter was designed.
设计了高次谐波滤波器。
Thus a smaller membrane gives off a higher first harmonic .
较小的膜发出较高的第一陪音。
The spontaneous emission spectrum and higher harmonic gain of a relativistic electron in a novel electrostatic wiggler are discussed.
讨论了一种静电摇摆器中电子的自发辐射谱和高次谐波的增益，其形式与平面磁摇摆器中的类似。
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