基本解釋n. 螺紋底孔鑽；螺孔鑽詞組短語(yǔ)短語(yǔ)tap p borer 螺孔鑽tap borer更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)螺孔鑽機(jī)械工程螺孔鑽螺紋底孔鑽