基本解釋[經(jīng)濟學(xué)]碳膜可變電阻器詞組短語短語carbon n film variable resistor 碳膜可變電阻器carbon film rotary variable resistor 碳膜旋轉(zhuǎn)可變電阻器carbon film variable resistor更多詞組專業(yè)釋義經(jīng)濟學(xué)碳膜可變電阻器