... Datum 在测定海拔时用到的一个固定深度、时间值或者一个层面，即基准面。 Depth Contours 层面的等高线，描述相同的深度或时间值。 Depth Conversion 将Z值在深度域和时间域间相互转换。 ...
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dynamic depth contours 动态等深线
Grid contouring is one of methods often used for drawing depth contours by computers.
规则网格法是计算机绘制等值线的常用方法之一。
Comparing the water depth maps surveyed during 1934, 1968 and 1992, it is obvious that water areas enclosed by different water depth contours decreased continuously in the whole area of the bay.
通过对1934,1968和1992年的海图对比研究表明：近期乐清湾各等深线所围水域面积持续减小。
It can successfully solve the problem of connecting segments of contours in the image, and gives a dense depth map, which is consistent with the real situation.
它能够较好地解决图像中轮廓短片的连结问题，并给出合乎客观实际的深度填充结果。
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