基本解釋[經(jīng)濟(jì)學(xué)]工業(yè)結(jié)構(gòu)優(yōu)化升級英漢例句雙語例句Metal powder materials have great significance to promote the nonferrous metals industry and chemical industry to upgrade its technology and promote the optimization of the industrial structure.金屬粉體材料對促進(jìn)有色行業(yè)和精細(xì)化工行業(yè)技術(shù)升級，推動(dòng)優(yōu)化產(chǎn)業(yè)結(jié)構(gòu)具有重要意義。industry structure upgrade and optimization更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)工業(yè)結(jié)構(gòu)優(yōu)化升級