基本解釋[經(jīng)濟學]錐柄麻花鑽頭詞組短語短語Taper -shank lengthened fluted twist drill 錐柄加長麻花鑽taper-shank twist drill更多詞組專業(yè)釋義經(jīng)濟學錐柄麻花鑽頭