upper harmonic 中文意思是什麼

upper harmonic 解釋
高次諧波
  • upper : adj 1 (更)上面的,上方的,上部的;較高的;上級的;(議會)上院的;(衣服)穿在外面的。2 上流的...
  • harmonic : n 1 【音樂】泛音;和聲。2 〈 pl 〉【數學】諧函數,調和函數。3 【物理學】諧波,諧音。adj 1 和睦的...
  1. The content of this theme is as follows : without time, without open, without stopping railway transport, and without interrupting traction current of block tested, meanwhile track circuit parameters in electrical and no electrical blocks is measured of on - line, dynamic and real - time. these parameters include voltage of fsk signal, voltage of industrial and harmonic wave interference, upper frequency, lower frequency, carrier frequency and low frequency 18 messages frequency

    本課題研究內容:在不要點,不開天窗,不中斷行車,不中斷被測區段牽引電流的情況下,在線、動態、實時測量電化區段和非電化區段的移頻信號電壓、工頻干擾電壓,移頻信號(調頻信號)的上邊頻、下邊頻、載波頻率、以及低頻18信息頻率等參數。
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