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High-precision detection instruments such as three-coordinate measuring instrument and imager are precise escorts in machining and automobile manufacturing industries. With excellent measuring ability, they ensure the dimensional accuracy and shape accuracy of each component, effectively reduce errors and improve product quality. At the same time, the automatic inspection process accelerates quality control, helps enterprises to produce efficiently and enhance market competitiveness. In the wave of intelligent manufacturing, these high-precision instruments are undoubtedly an important force to promote the transformation and upgrading of the industry.