基本解釋[經(jīng)濟(jì)學(xué)]電功率傳感器詞組短語短語watt -hour transducer 有功電能變送器hall watt transducer 霍耳watt transducer更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)電功率傳感器