基本解釋[經(jīng)濟(jì)學(xué)]煤焦油電極瀝青詞組短語短語Electrode coal -tar pitch binders 電極瀝青粘結(jié)劑coal tar electrode pitch更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)煤焦油電極瀝青