小平面

Inscribed polygons are used to approximate a circle, and the number of line segments compose the polygon is detemined by the radius and its image of a circle. Calculation of rotation angles between circle and world coordinate systems with normal vector of circles is also discussed. The proposed approach is tested with several real image data, and results are very satisfying.

讨论了利用空间圆所在平面的法向向量计算空间圆局部坐标系相对于物方坐标系的两个旋转角的方法，系统论述了基于物方直接解和直线段最小二乘模板匹配方法进行空间圆匹配与重建的数学模型，并利用实际图像数据进行了重建实验，取得了较好的重建结果。

A new method for planar curves has been developed. Curvature signal is decomposed with wavelet at first, and then select interpolative dots by altering pace, which is used to construct a G2 continuous rational cubic Bezier spline curve.

给出了一种先对初始曲率进行小波分解，再用变步长的方法选取待插值点，最后利用C^2连续的三次有理Bezier样条插值重建出光顺的平面曲线的方法。

These results indicate that since the revetment has been finished,the shift range of left bank and thalweg has decreased distinctly and the channel planar distortion is controlled effectively.

结果表明，实施护岸工程后，该河段左侧岸线及主泓线的摆动幅度明显变小，河道的平面变形得到有效控制。

Because the BaMianTai oil field was a fault block hydrocarbon reservoir and the stable yields of the reservoir is a bottleneck problem, the thesis did a lot of works on the meticulous description research, and the fine ...depositional time comparison; the flat distribution graphs and the reservoir sand graphs of depositional microfacies in different time were drafted; the researches on 3D seismics microtectonics and little faults'fine explanation and reservoir types of main layers were completed in the thesis.

本文针对八面台油田是一个复杂的断块油藏的特点和制约油田稳产的瓶颈问题，开展了精细油藏描述研究工作，进行了沉积时间单元精细划分对比；编制了不同时间单元的沉积微相平面分布图、油砂体图；完成了主力油层顶面三维地震的微构造、小断层精细解释以及油藏类型的研究。

Is one kind of horizontal transport equipment; In the small scope the work convenient, the usability suits under the majority condition to be few, the temporary short haul; Is the factory, the warehouse and one of supermarket commonly used loaders; It has the structure simply, is self-possessed lightly, is convenient quickly and so on the characteristic.

铁板手推车：是一种平面运输设备；在小范围内作业的方便性、实用性适合大多数条件下少量、临时短途运输；是工厂、仓库和超市常用的搬运设备之一；它具有结构简单、自重轻、方便快捷等特点。

By taking a plan grating as a beam splitter and a spherical mirror as an imaging objective,the splitting system realizes a spectral plane and a small spectral band(＜42%),which is conductive to the signal receiving by a CCD detector.

分光系统采用平面光栅为分光元件，球面反射镜为成像物镜，实现了平谱面和较小的谱线弯曲(＜42%)，利于CCD探测器接收。

Tensor is a strain gauge used to measure the direction of the plane on three different levels of strain changes its beauty lies in obtaining the largest and the smallest strain, shear strain, as well as other components of the contingency money and direction.

一种是张量应变测量仪用于测量三个不同平面方向上的水平应变变化，其优点在于可以计算出最大、最小应变、剪切应变以及其他应变分量的量值和方向。

A revised branch and bound algorithm based on the idea of Horst (1976) is developed to minimize the tangent plane distance function to determine the thermodynamic stability of a postulated solution for the liquid phase equilibrium described by UNIQUAC or UNIFAC activity coefficient equations.

分支限界法是近年来发展起来的一种用于求解全局优化问题的确定性算法。在本文中，针对由UNIQUAC或UNIFAC活度系数方程描述的液相稳定性分析问题，我们发展了一种用于最小化切平面距离函数的改进的分支限界法。

The tangent plane distance method is the most popular method for phase analysis, which needs to find the global minimum value of TPD function.

相稳定性判别为相平衡计算的基本课题，常采用Gibbs自由能曲面与切平面的距离函数最小化方法求解。

This series machine with characteristics like small land occupancy, high efficiency, low power cost, no yarn wasted. It can make all kinds of plane and solid pattern, which widely applied in making of carpet, tapestry, handicraft, toy, bedding and so on.

本系列机具有占地小，效率高，能耗低，无尾纱浪费等特点，可编织出各种平面、立体图案，广泛适用于地毯、挂毯、工艺饰品、玩具及床上用品的生产。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失