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介绍了视觉检测系统中的机械定位系统，讨论了两种定位方法──“硬件定位”（机械定位）及“软件定位”（定位误差的修正和补偿技术）。
The mechanical positioning system in vision inspection system is introduced. Two positioning methods are discussed: “hardware positioning” (mechanical positioning) and “software positioning” (positioning error correction and compensation technology).