基本解釋[經(jīng)濟(jì)學(xué)]真空熱離子琯檢波器詞組短語短語vacuum m thermionic tube detector 真空熱離子琯檢波器vacuum thermionic tube detector更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)真空熱離子琯檢波器