Besides common geometric measurements such as distances and angles, a new measurement of average curvature energy defined for boundary curve segment is included in the set to describe curve feature.

除了常见的几何测量(如距离和角度)外，提出了一种平均曲率能量的测量方法来描述边界曲线特征。

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The curve is more than just an aesthetic feature - the arch forces the water to press downwards against the dam.

它的曲线不仅具有美学特征，它的拱门更是将水流压向水坝的下方。

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The disadvantages are that you have to pay for them, they have a steep learning curve, and they don't allow you access to their source code in case you need to modify a feature.

而缺点是您需要为它们付费，有一段陡峭的学习曲线，而且当您需要修改功能时不允许您访问源代码。

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While Apple is well known for not disclosing what it is going to do this does seem to put to rest the company moving down the price point curve and not coming out with a lower quality, less feature rich smartphone.

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