The reverse of lumen part is different from outline, such as collect data method, treat with point, pick up feature point and curve fitting.

曲面内腔类零件的反求有别于轮廓外形的反求，主要体现在数据采集的方法，点云的处理，特征点的提取以及曲线的拟合。

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This algorithm is fast, can be used widely, and can pick up Minimum Closed Loop from any complicated curve set.

该算法速度较快、应用范围广，能适用于任意复杂曲线集提取最小闭环的情况。

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Normally the yield curve is positive because investors demand higher yields to compensate for the risk that inflation might pick up.

ECONOMIST: Bond bombshell

Like the hitter in Trouble with the Curve, the company had shortcomings that needed correcting before it could be a true first-round pick.

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The US carriers want to be one step ahead of the curve that could lead to declining mobile voice revenues in markets where consumers still have the option to pick a voice minute bucket.

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