The mainharmonic problem in our country is consistency between utility and electrified railway.
我国谐波的主要问题是电力系统与电气化铁道的协调问题。
2
And then, starting with harmony, the author analyzes several mainharmonic progression characteristics of Chopin's scherzos.
然后从和声入手，分析了肖邦谐谑曲中和声进行的几种主要特点。
3
Through analysis of the current waveform of the semi-control double three-phase 12-pulse rectifier and the expansion of Fourier series, the mainharmonic components of the system were obtained.