利用多元线性回归建立了冷拔外螺纹铜管凸筋高度与坯料壁厚之间的经验关系式。

The experience relationship between fin-height and rough tube wall-thickness for cold-drawn outer-spiral-fin tube is established with many-membered Iinear regression in this paper.

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该关系式可对外螺纹铜管凸筋高度进行预测与控制，对外螺纹铜管冷拔工艺的制订具有参考价值。

This relationship can be used to forecast and control the fin-height of the outer-spiral-fin tube, and it has referenced value for the working-out of the technics for cold-drawn outer-spiral-fin tube.

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