The rough gear milling is the preceding working procedure of finish gear milling, which influences not only the machining efficiency of gear but also the final machining accuracy of tooth flank. 粗銑齒是精加工銑齒的前道工序，它影響齒輪的加工傚率也影響齒麪的最終加工精度。
權(quán)威例句
On his left flank stand America's white working-class voters, who face stagnant wages at best and protracted unemployment at worst. ECONOMIST: The Republicans