It plays a very important role of the shape of transitional curve in gear root to bending strength,for higher strength,we must research the transitional curve in gear root.是什么意思_It plays a very important role of the shape of transitional curve in gear root to bending strength,for higher strength,we must research the transitional curve in gear root.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句