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Least-square technique is used to calculate the higher order horizontal derivatives of Bouguer gravity anomaly, and problems associated the calculation such as line smoothing and interval selecting are discussed.

采用最小二乘法演算了布格重力异常高阶水平导数的计算过程，对计算和使用中涉及的圆滑处理，区间选择等相关问题进行了简略探讨，并列举了在地热勘察中利用高阶水平导数提高重力资料解释效果的实例。

Terrain correction is needed when we do research on the internal structure of the Earth, the Lunar, and Mars by use of satellite gravity measurements, then calculate global Bouguer gravity anomalies. It is effective to carry out terrain correction in spherical coordinates.

利用卫星重力测量资料研究地球、月球与火星等星体的内部构造时，需要进行重力地形校正，计算全球布格重力异常，而在球坐标中实现地形校正计算是一种有效的途径。

At last,the boundary collocation method is used to calculate the energy release rate.

最后，用边界配置法计算了能量释放率。

First, the linear combinations of basic set of solutions to Laplace equation under polar coordinate system are chosen as the approximations for the solution of temperature fields,boundary residual collocation method are applied to calculate the distribution of the temperature fields for single-particle model.

本论文主要完成了两方面的工作，一方面是采用加权残值法和边界元法对不同复合材料模型的2D稳态热传导的温度场进行了求解分析。

On the basis of energy balance model, an improved scheme which is used to calculate boundary layer parameters is presented.

在能量平衡方法的基础上提出一套利用常规气象资料求取边界层参数的改进方案。

Today we can calculate airfoils which maximize the length of the laminar boundary layer.

今天，我们可以计算翼型，其中最大的长度的层流边界层。

A new kind of numerical method, the boundary point method , is used to calculate the magnetic field.

第五章将新型计算方法——边界点方法引入电磁场的计算。

By analyzing the characteristics of the boundary pixels to formulate a boundary pixel extraction operator, the operator need only calculate up to 4 pixels neighborhood pixels, is efficient, fast, he can direct the use of binary images are extracted as the boundary pixel, are single-pixel wide border.

通过分析边界象素的特征，归纳出一个边界象素提取算子，该算子最多只需要计算象素的4邻域象素，运算量小，速度快，运用他能直接提取出二值图象的边界象素，得到单象素宽的边界。

ANN is developed to calculate boundary point's angle with respect to the x-axis between clockwise or anti-clockwise boundary.

在一定的邻域内，夹角小的点被认为是主点。

In performing the numerical analysis of unsteady seepage problem, it is necessary to calculate the integral on free surface boundary.

在三维非恒定渗流有限元计算中，不可避免地需计算自由面上的边界积分项。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。