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Also, a method of quasi-stable adjustment and a software system researched and explored by Visual BASIC Language have been used to process the observation data of GPS dam deformation monitoring network..3 A mathematical model of three-dimension combined adjustment with GPS and other surveying data under station orthogonal coordinate system in deformation monitoring networks, has been brought forward.

提出了站心地平坐标系下GPS观测数据与其它地面测量数据三维变形监测网联合平差的数学模型，在数据处理模型中通过参数化的方法消除或减弱垂差和垂直折光的系统误差的影响。

First, the finite difference was used to solve numerically the coupled Navier-Stokes equation and the convective-diffusion equation for surfactant in a orthogonal body-fitted coordinate system. The effect of surfactant on the flow field inside and around the deformed drop was successfully simulated.

本文在正交贴体坐标系下采用有限差分方法，对不可压缩流体的Navier-Stokes方程和表面活性剂的对流—扩散方程耦合求解，从而首先模拟了表面活性剂对单液滴运动的影响。

Inthe horizontal plane, the orthogonal they-fitted coordinate system exactly fits the shore lines, and in the vertical direction, the blocka...

在该坐标系统中，水平面上的正交贴体坐标系与岸线精确地吻合；铅垂方向则采用笛卡尔坐标系中的堵塞技术使之与底部边界吻合。

A calculation model is established for the corrugation and annular flow field of a stratification injection allocator by using 3D Max and it is put into VR environment of PHOENICS and based on the actual geometric size of the allocator,κ-ε turbulent calculating model is used for numerical calculation of water medium flow field by using orthogonal and detail grid under coordinate system.

用3D Max建立了分层配注器波纹环空流场的计算模型，调入PHOENICS的VR编辑环境中，根据实际配注器的几何尺寸，在柱坐标系下，采用局部加密正交网格，应用k-ε湍流计算模型对水介质流场进行了数值计算，给出流场的速度分布与压力分布曲线，并对比分析了3种形状的波纹环空流场的数值计算结果。

By coordinate transformation,specifically,by using orthogonal coordinate system to obtain vertical high resolution ratio in superstratum water of Beibu Gulf and making use of Sigma coordinate system to match terrain in bottom water,the authors intend to set up Beibu Gulf Physical Oceanic Model and use the model to simulate partial tide M\-2,partial tide K\-1 and partial tide O\-1 respectively.

采用坐标变换方法，在北部湾上层海洋采用正交坐标系以获得垂向高分辨率，在底层水体采用 Sigma坐标系以拟合地形，建立北部湾的物理海洋模型，并利用建立的模型分别模拟北部湾的 M2 、K1 、O1 分潮。

The errors and area limits caused by the lunar curvature were avoided in this model established under the Selenocentric Orthogonal Coordinate System, the accidental errors of exterior line elements were reduced by orbit fitting and interpolation, the polynomial orders of systematic errors in satellite orbits were decreased with their expression in the flying coordinate system moving and rotating with satellites, and the reliability of exterior orientation solution was enhanced under the condition of sparse and low accuracy control points by appending constraint of orbit and attitude parameters.

该模型通过在月心直角坐标系进行影像空中三角测量来消除月球曲率引起的误差和测图范围限制，通过轨道形状的拟合与插值来减小摄影时刻轨道位置的偶然误差，在飞行坐标系中建立轨道修正模型来减少定向参数的数目，对轨道和姿态增加约束条件来提高月面控制点数目稀少及精度低条件下外方位解算的精度与可靠性。

Thismodel is formulated with the relative displacement and the contact press directlyin the orthogonal coordinate system,without introducing the slip angle asvariable and transforming the variable to the polar coordinate system.

未引入滑动角度作为变量，直接在直角坐标系下以接触力和相对接触位移为变量进行列式，无须转化到极坐标系下。

Msmodel is formulated with the relative displacement and the contact press direCtiyin the orthogonal coordinate syStem, without introducing the slip angle asvariable and transforming the variab1e to the polar coordinate system.

在工程实际中得到大量应用的二维摩擦接触问题迭代法，贴近力学直观，无须引入额外变量，无须计算导数矩阵，被工程界所熟悉。

A special type of half-plane problems of elasticity is presented and discussed. By using two methods in polar coordinates and orthogonal coordinates respectively, the analytical expressions of stress components are solved in the two coordinates. There are little differences between both results, which confirm the equivalence of the two methods.

针对一类特殊的弹性半无限平面问题，分别给出了其在极坐标系与直角坐标系下的求解过程，获得了在这两种坐标系下应力分量的解析表达式，并对这两种解法的结果进行了比较与讨论。

To compensate for nonlinear distortion of RF power amplifiers, a novel adaptive digital predistortion method based on piecewise polynomial was proposed, and multiple lower-odd-order-only polynomials in the form of orthogonal coordinates were used for predistorter design.

为补偿RF功率放大器的非线性失真，提出一种新的基于分段多项式的自适应数字预失真方法，使用多个直角坐标形式的低阶奇次多项式设计预失真器。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。