About theoretic calculation for lightning electromagnetic field, two analytical methods are raised, which are dipole method in time domain and time-varying field method in frequency domain.
在雷电电磁场的理论计算方面，提出了两种方法，即时域中的偶极子方法和频域中的时变场方法。
Presents the transmission matrix of heat transfer of multilayered spherical walls and introduces the calculation procedure of frequency-domain regression (FDR) method.
给出了多层球形墙体的热传递矩阵，提出了用频域回归(FDR)方法计算球形墙体瞬时传热的方法。
Implementing Fourier Transform to solve the acoustic pressure correction equation in the frequency domain can avoid cockamamie retarded time calculation.
通过傅立叶变换在频域求解声压方程，避免了繁琐的时间延迟计算。
The frequency domain analysis can take into account the characteristics of atmospheric turbulence, and the calculation is simple, so this method have been widely used.
频域分析法能全面考虑大气湍流的特性，且计算简便，因而得到了广泛的应用。
The frequency domain analysis can take into account the characteristics of atmospheric turbulence, and the calculation is simple, so this method have been widely used.
频域分析法能全面考虑大气湍流的特性，且计算简便，因而得到了广泛的应用。
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