Besides improvement of traditional polishing process , float polishing , ion beam machining , elastic emission machining and other new methods of polishing have been used for preparing super smooth surface in the last decade 近年來,此項技術(shù)研究進(jìn)展迅速,不僅改進(jìn)了傳統(tǒng)的拋光技術(shù),還出現(xiàn)了浮法拋光、離子束加工和彈性發(fā)射加工等新技術(shù)。