Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
利用傅里叶级数对其进行了频谱分析，计算了次数小于19次的各次谐波电流均方根值的频谱数据。
This atlas includes rich contents, meanwhile is interspersed with chart data and succinct words, showing an exquisite design and perfect harmony among science, technology and art.
图集内容非常丰富，图表数据与文字穿插衬托，设计精湛，达到了科学、技术与艺术的和谐境界。
This atlas includes rich contents, meanwhile is interspersed with chart data and succinct words, showing an exquisite design and perfect harmony am…
图集内容非常丰富，图表数据与文字穿插衬托，设计精湛，达到了科学、技术与艺术的和谐境界。
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