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Precision machining technology is to adapt to the needs of modern high technology and the development of advanced manufacturing technology, which integrates the application of the new achievements of the development of mechanical technology, as well as modern electronics, sensor technology, optics and computers and other high-tech, high-tech areas of the basic technology in the modernisation of defence science and technology and the construction of the national economy is playing a vital role, and at the same time, as a modern high-tech technology and an important part of the basic technology. At the same time, as the basic technology and important part of modern high-tech, it promotes the development and progress of semiconductor technology, optoelectronic technology, material science and other technologies. Ultra-precision machining technology has become a key technology for the development of modern weapons and equipment in the defence industry, and is also an important symbol for measuring the level of science and technology.At the same time, as the basic technology and important part of modern high-tech, it promotes the development and progress of semiconductor technology, optoelectronic technology, material science and other technologies. Ultra-precision machining technology has become a key technology for the development of modern weapons and equipment in the defence industry, and is also an important symbol for measuring the level of science and technology.