查询词典 chisel point

The point cloud was divided twice and distributed to 3D cell grids, then ultimate space, internal space, external space were decided for each grid. With the help of each point s sphere space, K-nearest neighbors of the point can be found quickly.

首先，采用二次划分的方法将点云划分到相应的立方体小栅格中；然后，为采样点所在的立方体小栅格确定最终子空间、内子空间和外子空间，结合采样点的球空间，就能很快确定该采样点的K邻域的搜索范围。

This approach uses the geometric features and radiation features of the road, according to the small amount seed points given by the user, each point in the road centerline can be gotten. Then an adaptive gray template is used to adjust each point in the road centerline. Finally, least square method and Newton iteration method are adapted to each point in the road centerline to fit a polygonal line.

该方法利用道路地物的几何特征和辐射特征，根据用户提供的少量道路种子点，利用自适应灰度模板对道路中心线上的每个点进行调整，最后采用最小二乘算法和牛顿迭代法对调整后的道路中心线上的每个点进行拟合，以此获得趋近于道路中心线的最佳折线。

Years 10 22, the State Council Information Office held a press conference, press spokesman for the National Bureau of Statistics, Integrated Zheng Jingping Secretary pointed out that the decision factors in real estate prices from the demand perspective cost point of view, also from the perspective of the real estate quality and structural point of view, as well as the speculative point of view.

二零零四年10月22日，国务院新闻办公室举行新闻发布会，新闻发言人国家统计局综合司司长郑京平指出，决定因素在房地产价格从需求角度看成本的角度来看，也从房地产的质量和结构的角度来看，以及投机的角度来看。

First introduced highway alignment's definition, the significance, the developing process and the CASIO series calculator in the highway surveying computation application; Using the traverse survey computation's two basic mathematical model (azimuth calculation, coordinate calculation), compile the corresponding procedure to solve echo the wire coordinate computation; With the aid in the mathematical model which three, four and so on leveling's field operations calculate, compiles the corresponding procedure to solve the road elevation survey computation; According to relaxes the circular curve principal point and the detail coordinate computation mathematical model, based on this programs the solution to relax the circular curve coordinate principal point and the detail coordinate computation, then further develops this procedure to use to calculate the circular curve principal point and the detail coordinate computation.

首先介绍了公路线路的定义、意义、发展过程和CASIO 系列计算器在公路测量计算的应用；利用导线测量计算的两种基本数学模型，编写相应的程序以解决附和导线坐标计算；借助于三、四等水准测量的外业计算的数学模型，编写相应的程序以解决公路高程测量的计算；根据缓和圆曲线主点及细部点的坐标计算的数学模型，在此基础上编程解决缓和圆曲线坐标主点及细部点坐标的计算，然后进一步开发此程序用以计算圆曲线主点及细部点的坐标计算。

The point is that you want to print three net-point jump area, also known as the three key areas to make an adjustment, which is 3%, 50% and 80% of the net-point area.

重点是要对印刷的三个网点跳跃区，也称三个关键区进行调整，即3%、50%、80%网点区。

Based on the computation of double point, triple point, and quintuple point, it computes scalar multiplication nP by using properoperations.

该算法在已知二倍点、三倍点和五倍点运算量的基础上，经过恰当的运算计算标量乘。

At last, based on the growth point theory and the institutional transformation' two ness, the paper constructs the compellent and the inductivity economic increasing point in the construction industry, definitions the system term in which the reciprocal transformation could be occurred between the compellent and the inductivity economic increasing point.

本文先从哲学和系统论的角度，辨证地思考了制度变迁的内生问题，提出了制度变迁的二重性、制度供给一般以及制度供给特殊，解释了强制性制度变迁和诱致性制度变迁二者之间的相互转化，然后构建了诱致性经济增长点和强制性增长点，并对两类增长点的转化及其转化的系统条件进行了界定。

Firstly, based on the Duhamel integral and dynamic reciprocity theorem, the generalized Duhamel integral expression is written to a point in the half infinity space under moving load. Secondly, the train load is considered as a series of centralized loads with fixed distance. The dynamic response expression of a point in frequency domain and frequencywavenumber domain are derived out through the Floquet transform and Fourier transform under a moving load, and then the dynamic response of a point is gotten ...

以Duhamel积分为基础，首先应用动力互等定理，得到了移动荷载作用下，半无限大弹性连续介质空间上任意点的动力响应的广义Duhamel积分表达式；然后将列车荷载简化考虑为一系列具有一定间距的集中荷载，采用Floquet变换、Fourier变换等方法，得到了一个集中移动荷载作用下任意拾振点ξ的动力响应在频域和频率波数域内的表达式，进而由叠加原理得到列车荷载作用下的动力响应解；最后，通过算例说明该算法的适用性。

It including the pitch point electric current equation andthe return route voltage equation two parts, former pointed out that,regarding any pitch point (3 or 3 above legs points of intersection),flows in and flows out the pitch point various electric currents algebra and is zero, this is the constant condition request, latter pointed out, regarding any closed path, each part of loss of voltage algebra and is zero, this is the electrostatic field ring circuit theorem result, two constituted the complete system of equations.

它包括沥青点电流方程强大的回路电压方程由两部分组成，前者指出，对于任何节点（ 3层或3条以上的腿分的交汇点），流入和流出草地点不同电流代数和是为零，这是恒定的条件要求，后者指出，对于任何封闭道路，每部分的损失电压代数和为零，这是静电场的环形电路定理的结果，构成了两个完整的系统方程式。

The surface of conventional engineering part is composed of simple analytical surfaces and four-boundary ruled surface primarily. Therefore a point cloud segmentation method based on those feature surfaces is proposed. Several algorithms to identify the simple analytical surface feature are investigated and discussed. The theory of fitting scattered point to B－Spline and Bézier surfaces is introduced and a fitting method based on four boundary and point set is also discussed. Moreover, anew method to recover the fix-radius rolling ball blend is proposed and discussed in detail.

常规工程零件的外表面中包含了大量的特征曲面，如简单解析曲面和四边直纹面，因此，本文提出基于特征曲面的的点云分割方法，研究几种识别简单解析曲面的算法；研究由点云拟合B－Spline和Bézier曲线的理论基础，总结曲面拟合的几种方法，提出一种反求定半径滚球圆角的方法。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。