传统的计算机辅助工艺规划系统都是二维的，目前国内外尚无成熟的三维数字化装配工艺系统出现。
The traditional computer aided process planning systems are two-dimensional, and now there aren 't commercial three-dimensional digital assembly process planning systems.
传统的计算机辅助工艺规划系统都是二维的，目前国内外尚无成熟的三维数字化装配工艺系统出现。
The traditional computer aided process planning systems are two-dimensional, and now there aren 't commercial three-dimensional digital assembly process planning systems.
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