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This paper introduces the concept and basic framework of 3D model retrieval technology based on shape distribution, At the same time, according to the shape feature extraction and processing method of the model, the retrieval technique is introduced and applied in detail. This paper focuses on how to apply the 3D model retrieval technology based on shape distribution to the CAD/CAM, especially in the pipe segment merging number of the actual project. Today, with the rapid development of computer aided design, the application of this technology can meet the needs of the factory design, and it is also a breakthrough in the technical level. The application of 3D model retrieval technology based on shape distribution is a breakthrough attempt, although it has some technical problems, but it is of great significance.

The Application of 3D Model Retrieval Technique in Pipe Segment Merging Number