常見例句雙語(yǔ)例句Three methods of surface self-nanocrystallization for iron and steel are ultrasonic shot peening, high energy shot peening and surface mechanical attrition treatment.實(shí)現(xiàn)鋼鐵材料表面自身納米晶化的主要方法有超聲噴丸、高能噴丸和機(jī)械研磨處理等。 返回 ultrasonic shot-peening