| 1. | All three basins are enclosed by the 1900m depth contour .
三个海盆都被1900米的等深线所圈闭。 |
| 2. | Along slope current
沿坡面等深线流 |
| 3. | This paper proposes an efficient algorithm to trace nodes of equivalent depth based on topology of triangles
如何快速、有效地绘制等深线变得日益重要。 |
| 4. | In order to ensure a sustainable development of yellow river delta , the research on its coast line evolution is a hot issue now
研究发现，在反映黄河三角洲冲淤以及与黄河入海水沙的关系上，一般高潮线比2m等深线效果更好。 |
| 5. | The author proposed a new method called gliding adaptive smoothing in this thesis , which avoided the crossing of isolines efficiently and removed corners of isolines as well . these phenomenons usually occur unexpectedly in conventional processing
在等深线平滑问题中，提出了一种处理复杂形状曲线的自适应动态平滑方法，解决了常规曲线平滑方法在处理复杂的等深线时出现的若干问题。 |
| 6. | The distribution of euphausia snperba in the prydz bay region was very patchy , its abundance was higher in the slope area ( the pelagic area between the isobaths 1000 m and 3000 m ) than the open sea area ( the pelagic area beyond the 3000 m isobath )
大磷虾在普里兹湾海区的分布呈斑块状。分布趋势是陆坡区(在1000和3000米等深线之间的海区)各站的丰度普遍大于深海区(大于3000米深度的海区)各站的丰度。 |
| 7. | The waterway depth contour can be adjusted artificially in certain field . so the across of depth contours can be avoided effectively . in addition , the precision of depth contours is high and the speed of drawing is fast
在航道等深线的绘制方面，本文提出了一种新的航道等深线圆滑方法，可以在一定范围内人为调整等深线的张驰，有效地避免了等深线之间的交叉，并且等深线的绘制精度较高，绘制速度也特别快。 |
| 8. | Making full use of the correlated space information of multi - beam bathymetric data , the author put forward a method of gaussian surface approximation to build the grid net of regular digital terrain model ( dtm ) of surveyed seafloor , which is more accurate than other approximation methods
本文充分利用了多波束数据的空间相关信息，提出了一种基于高斯地形曲面拟合的数字地理模型数据网格化方法，准确快速地得到标准等深线图。 |
| 9. | This paper researches and develops the digital simulation software of 3d terrain in accelerating the producing speed of plane triangle - net , the smoothing of waterway depth contour , the construct of waterway curve plane function , the drawing of 3d graphics and the waterway simulation
本课题主要研究开发三维地形数字仿真软件，在提高航道平面三角网的生成速度、航道等深线的圆滑处理、航道曲面模型的建立、航道立体图的绘制及航道仿真等方面进行了一些研究和开发工作。 |
