基本解釋[經(jīng)濟(jì)學(xué)]無(wú)心外圓磨牀詞組短語(yǔ)短語(yǔ)centerless s external cylindrical grinder 無(wú)心外圓磨牀automatic centerless external cylindrical grinder 自動(dòng)無(wú)心外圓磨牀centerless external cylindrical grinder更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)無(wú)心外圓磨牀