“inverting parametric device”的概念、定义、翻译、参考文献-科学参考

单词	inverting parametric device
释义	inverting parametric device [in`vǝrd·iŋ ¦par·ǝ¦me·trik di`vīs] ^ELECTRONICS Parametric device whose operation depends essentially upon three frequencies, a harmonic of the pump frequency and two signal frequencies, of which the higher signal frequency is the difference between the pump harmonic and the lower signal frequency.
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