NEX：激励次数

英文缩写词NEX的例句

1. At present, a number of theoretical and experimental studies have been carried out on the metastable state excitations of argon. However, there are still some big discrepancies between these calculations and experiments because of strong correlation and relativistic effects.
2. 在过去的研究中，人们对中性氩原子已经做了大量的理论和实验工作，但是，由于其具有比较强的电子关联效应和级联效应，理论计算与实验测量还存在比较大的误差。
3. A frequency wave number spectrum method was proposed based upon fast Fourier transform and maximum entropy spectrum principle. The dynamic responses of the tail part of the shell of revolution attached to an underwater vehicle in certain excitations were investigated.
4. 基于快速傅里叶变换和最大熵谱法提出了一种频率-波数谱法，并对某水下航行器尾部壳体的受激响应进行了分析。