A celebrity is a person who works hard all his life to become known, then wears dark glasses to avoid being recognized. 所谓名人,就是费尽平生之力出了名,却又戴上墨镜怕人认出来的人。
Test Research of Grinding and Drilling with Ultrasonic Vibration on Hard and Brittle Glasses 在硬脆材料玻璃上超声振动研磨钻孔试验研究
As the development of modem machining technology, AJM is widely used for surface-treatment and micro-machining, especially for micro-parts of an apparatus made of hard and brittle materials such as glasses, ceramics and single-silicon. 随着现代加工技术的发展,磨料喷射加工越来越被广泛应用于材料表面处理以及微机械零件的加工,特别是如玻璃、陶瓷、单晶硅等硬脆性材料微器件加工。
The cations with high positive charge and small ionic radii are suitable to forming hard glasses, and those with low oxidation state and large radii are suitable to forming soft glasses. 具有高正电荷,小离子半径的阳离子适合形成硬质玻璃,而那些低氧化态、大离子半径的阳离子则适合于形成软质玻璃。
The rotary ultrasonic machining is a new ultrasonic machining ( USM) method which has been mainly used to drill holes in hard and brittle materials such as ceramics, semiconductors, and glasses in recent years. 旋转超声波加工是一种新的超声波复合加工方法。近年来,它主要用于陶瓷、半导体和玻璃等硬脆材料的孔加工。