激动频率;激发频率

excitation frequency的用法和样例：

例句

The excitation frequencies of all simple and combinational instability regions shifted because of the mode variations with increasing ply-angle of the composite plates.随复材板叠层数目增加，各单频与混频不稳定区之激发频率往高频处偏移，且各不稳定区激发频率之间距亦增加。

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acidulator

all-hands

alphanumeric data item

be under the pressure to do something

birthday