Machining refers to the process of changing the shape or performance of a workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing.

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Mechanical engineering is based on relevant natural sciences and technical sciences, combined with technical experience in production practice, to study and solve all theoretical and practical problems in the development, design, manufacturing, installation, use and repair of various machinery Subject.

Machinery is one of the five elements (people, capital, energy, materials, and machinery) for production and services in modern society, and it participates in the production of energy and materials.

Before the 15th to 16th centuries, the development of mechanical engineering was slow.

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