the first-order bragg peak 一阶bragg峰
Taking the circular fibres for the example, the first order correction local field and field shift in the fundamental mode peak field are discussed.
以圆光纤为例，讨论了一阶近似本地场形式及基模场在最大值处的场位移。
When the optimal inductance and resistance of the piezoelectric shunting circuit are obtained, the peak of the first order vertical bending vibration peak can be reduced obviously.
压电分流电路的电感值与电阻值取最优值时，可明显降低车体一阶弯曲振动峰值。
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