Objective:To analyse on the relationship between the interridge crest line angle and the tooth arrangement of complete denture.

目的 ：分析不同牙槽嵴顶间线角角度与全口义齿排牙之间的关系。

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Revetments protect the space from dam crest to the line a certain distance, normally 2.5m, under the minimum water level of the dam upstream.

护坡覆盖的范围，上游由坝顶护至水库最低水位以下一定距离，一般在最低水位以下2.5米。

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For the edges detection problem of digital images containing different degrees of noise, two smoothing and edge detection filters, based on a model of crest-line blurred edge contours, were proposed.

针对包含不同程度噪声数字图像的边缘检测问题，提出了两种建立在房顶型模糊边缘模型基础上的平滑和边缘检测滤波器。

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Our retail branding efforts for the Crest line of products, for instance, be it packaging or product placement, reinforce the benefits of a healthy, beautiful smile.

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