基本解釋[經(jīng)濟(jì)學(xué)]碳膜可變電阻器詞組短語(yǔ)短語(yǔ)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(jì)學(xué)碳膜可變電阻器