A new machining principle for non-cylinder pin hole of piston was presented by using giant magnetostrictive material (GMM) to control the deformation of tool rod.是什么意思_A new machining principle for non-cylinder pin hole of piston was presented by using giant magnetostrictive material (GMM) to control the deformation of tool rod.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句