基本解釋[經(jīng)濟(jì)學(xué)]錐柄麻花鑽頭詞組短語(yǔ)短語(yǔ)Taper -shank lengthened fluted twist drill 錐柄加長(zhǎng)麻花鑽taper-shank twist drill更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)錐柄麻花鑽頭