食材铺反向词典

if bandpass filter

I 开头单词

常见例句

    双语例句

  • The IF and its associated sidebands are up-converted to the microwave region by the mixer, microwave oscillator, and bandpass filter.
    中频载波和它的边带由混频器，微波振荡器，带通滤 波器上变频到微波范围。
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