基本解釋[經(jīng)濟(jì)學(xué)]鋸齒形花鍵軸[機(jī)械工程]鋸齒形花鍵軸詞組短語(yǔ)短語(yǔ)serration n shaft 鋸齒形花鍵軸serration shaft更多詞組專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)鋸齒形花鍵軸機(jī)械工程鋸齒形花鍵軸