介绍了排水管网水力与高程计算全局优化程序设计的基本思想。
This paper introduces a basic idea of overall optimization of computer programming for sewer system, and a new computer program has been developed.
坝顶高程由水库静水位加波浪爬高及安全超高决定。坝顶在静水位以上的超高按下式计算。
The dam crest height is determined based on static water level, wave run-up, and freeboard. The freeboard is calculated according to the following formula.
在进行标准海塘工程初步设计时，通常需要分析在河段江道的不利冲刷高程值，给海塘整体抗滑稳定计算条件组合提供依据。
In the design of standard seawall project, it is necessary to analyze disadvantage scour elevation in concerned river reaches, providing basic data in computing seawall global slide stability.
导出了重力、高程变化及相互关系在球坐标系中的理论和数值计算公式。
The theoretical and numerical formulas for gravity and height variations in spherical polar coordinates are derived.
本模型只需数字高程模型(dem)就可计算太阳直接辐射、日照时间和简化的散射辐射。
The model presented here only USES a digital elevation model (DEM) to compute direct solar radiation, time of irradiation and simply diffuse radiation.
探讨了利用数学高程模型识别流域分水线、确定坡面水流方向以及计算流域参数的方法。
A method of distinguishing watershed borderline, of ascertaining water flow direction on a slope, and of calculating watershed parameters with digital elevation model is introduced and discussed.
最后，还进行了GPS高程的拟合计算。
Finally, it conducts the fitting computation of the GPS elevations.
本文用两种不同的数学方法解决国家体育场斜(扭)柱在任意高程上柱角点三维坐标计算问题，对斜柱现场放样的方法进行阐述。
The different mathematical methods were used to calculate the three dimensional coordinate of the national stadiums raking columns, and the setting out method of the raking columns was elaborated.
针对除险加固措施，确定了水库特征水位与库容，计算了坝顶超高及坝顶高程，探讨了坝体和坝基防渗、坝面护坡及防冻等问题。
Characteristic water level and reservoir capacity is fixed, freeboard and dam crest is calculated, seepage prevention of dam body, dam foundation and dam sheeting is discussed.
由离散高程点建立的三角网d TM，能够在多方面应用。如生成等高线、建立地面模型、计算土方量等。
Triangle network DTM building with concrete height points can be used for various aspects, e. g. generating contours, building surface model and calculating earthwork, etc.
介绍一种运用计算机程序预求大堤所对应取土坑坑底高程的方法。
The paper introduces the way to calculate the pit elevation of borrow pits by computer.
数值计算的结果表明，对于波面高程和水平流速值，由非线性波理论所得的结果较线性波理论的结果为好。
Surface elevations and horizontal velocities Calculated or observed indicate that the non-linear wave theories provide better results than the linear wave theory.
结合数字高程模型的特点，对土石方工程量格网法计算方法进行改进。
Combined with the digital elevation model characteristics, this paper improves the grid method that is used to calculate earth-rock volume.
对于采用本方法计算淹没区，准确性受地形图等高距大小、数字化采集精度、数字地面模型（DEM）高程精度以及格网间隔大小、像素探测分辨率等因素的影响。
The accuracy of flood area is mostly dependent on the contour interval of map, accuracy of digitizing map, accuracy of DEM, and interval of GRID, detecting resolution of pixels.
利用程序计算出网格中心点对应的地表高程，以及网格中心的高程。
With this program, it can calculate the elevation of grid cell and the elevation of surface.
采用线性绕射理论计算了开敞式墩柱码头墩间的波面高程，并编制了计算程序。
A computer program is developed for calculating the wave profile surrounding the cylinders in the open sea pillar quay with linear diffraction theory.
从规则高程格网中自动提取等高线是地理信息系统以及计算机制图的基本功能。
The extraction of contour lines from Grid DEM is a primary function in computer-aided cartography and GIS.
计算结果证实了右岸大规模崩塌物可能堆积到左岸的推断，同时也很好地解释了两岸堆积物厚度悬殊及高程差别悬殊的疑问。
Meanwhile, it is well explained that the deposits on left bank are much thicker than that on right bank; and there is an obvious difference in surface elevation between the two Banks.
通过对水利损失的计算，确定了各构筑物的高程，为绘制高程布置图和平面布置图提供了依据。
The loss of water through the calculation to determine the elevation of the structures for mapping elevation layout maps and graphic layout plan provided basis.
最后通过与该区域开采前数字高程模型对比分析来完成塌陷区沉陷范围、深度、体积等沉陷参数计算。
By comparing the constructed DEM with the original, the subsidence parameters such as subsidence range, depth and volume etc can be calculated.
介绍了GPS高程的应用理论，大地水准高的计算方法以及利用曲面拟合法计算大地水准面高，并对结果进行了分析，绘制出高程异常等值线图。
The paper introduces the application theory of GPS height and both the general method and the curved surface fitting method to measure geodetic height.
设计方案中对已有的数字高程模型进行加密内插，使用三角化方法来计算地表曲面面积，采用参考平面法实现区域通视分析。
Then triangulation is used for the calculation of a polygon's surface area, and viewshed analysis is carried out using the method of reference plane.
为计算地面上具有高程的两点间的大地距离，构造了一个过两已知点的新椭球，确定出了新椭球的有关参数，在此基础上给出了计算大地距离的非迭代法和大椭圆法，并与传统方法进行了精度比较。
In order to calculate the geodetic distance of two points that are far from the refernced ellipsoid, a new ellipsoid which passes the two points is constructed, then its parameters are determined.
为提高程序的质量与效率，通过试算找出多个计算方法与参数的优化选择。
For improving the quality and efficiency of the program, many math experiments have been done to find the optimal methods and parameters.
为提高程序的质量与效率，通过试算找出多个计算方法与参数的优化选择。
For improving the quality and efficiency of the program, many math experiments have been done to find the optimal methods and parameters.
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