ultra-precision machining; ultra-precision cutting
Technical term in manufacturing and engineering for machining processes with extremely high precision, typically at the sub-micron level.
Ultra-precision machining is an essential technology for manufacturing optical lenses.
In this factory, they achieve nanometer-level precision through ultra-precision machining.
精密加工 is general precision machining, while 超精密加工 emphasizes an even higher level of precision, often at the sub-micron or nanometer scale.
Compound of 超 (ultra), 精密 (precision), and 加工 (machining/processing). A straightforward technical term formed from Sino-Japanese elements.