range of instability
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- 不稳定区
双语例句
- 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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