提出数控加工中加工路线的确定原则和选择要点，以保证加工质量与提高生产效率。

It presented the determinate principle and the selection points of machine path, so that to ensure the machining quantity and to raise the production efficiency in nc machining.

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与原有算法相比，新算法大大提高了总体最小二乘图像去噪算法的效率，并保证了去噪质量特别是保持图像边缘结构以及点特征。

This new method can shorten the runtime as well as improve efficiency of denoised arithmetic, while ensure the denoising quality, especially in the point, line, and edge regions.

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该技术能提高浇注工艺设计效率与精度，缩短设计周期，保证产品质量，提高工艺出品率。

The technology can improve the efficiency and accuracy of gating system design, shorten the design period and ensure the castings quality, and increase the casting process product yield.

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