According to lead form principle of cylindrical gear with involute helicoids,it is analyzed of several theoretical methods on lead modification of involute helicoids gears by using CNC form grinding .是什么意思_According to lead form principle of cylindrical gear with involute helicoids,it is analyzed of several theoretical methods on lead modification of involute helicoids gears by using CNC form grinding .在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句