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The central statistics office coordinates the government's statistical services.

中央统计办公室负责协调政府的统计服务。

By taking advantage of a corollary of the Desargues theorem and the corresponging extension of Desarguesian configuration, the concept of stereohomology has been defined in projective geometry and presented based on homogeneous coordinates. Consequently, a series of geometrical transformations, such as central projection, parallel projection, centrosymmetry, translation transformation, reflection, rotation transformation, which can be contained in it or derived from it have also been analytically defined.

利用Desargues定理的一个推论和引申的Desargues图形，给出"空间透射"在射影几何意义下基于齐次坐标表象的解析定义，从而解析定义了可蕴涵其中的中心投影、平行投影、中心对称、平移、反射等几何变换以及可由此衍生出的旋转变换。

Another MCU, 89C2051 is used to realize the control of the three rows LED monitor showing coordinates of axis X and Z axis and other state of the system. Charnel A and C of 8155 are used for editor keyboard, which make the inputting or editing of the NC code and data possible. Charnel P1 of 8031 is used for the operation keyboard such as system power on/off and movement of axis X or Z. a programmable parallel I/O chip, 8255, is used to achieve system I/O and the transmission of other information. In summarize, the system developed is characterized by its simplicity, low development cost and high reliability.

在CPU存储器扩展电路设计中， CPU选用MCS-51系列的8031单片机，外扩32K的程序存储器和 8K的数据存储器，分别用于存放系统管理程序、数控加工程序以及运算数据；在显示电路设计中，选用MCS-51系列的89C2051单片机作为从CPU，控制三排LED显示器，用于X轴、Z轴动态坐标以及相关数字的动态显示；在手动键盘和编辑键盘设计中选用8155芯片的PA口和PC口作为行、列母线，扩展矩阵式编辑键盘，用于程序和数据的输入或编辑，同时选用8031单片机的P1口扩展手动键盘，用于系统启动、停止以及运动部件在X、Z轴方向的手动控制；在I/O口扩展电路设计中选用8255芯片扩展输入输出口，用于接收和传送开关量及相关信息。

The Chebyshev polynomial was applied to fit satellite coordinates of the broadcast ephemeris to realize satellite orbit standardization.

利用切比雪夫多项式拟合广播星历的卫星坐标，以实现卫星轨道的标准化。

The precision in fitting satellite coordinates of broadcast ephemeris by the Chebyshev polynomial and the rational choice of polynomia...

通过实例分析了用切比雪夫多项式进行卫星坐标拟合的精度及多项式阶数和时间间隔的合理选择等问题，得出了一些有益的结论

At the same time, the spectrum, luminous flux, and chromaticity coordinates of HPW-LEDs change with forward current are studied.

同时还测量了光谱分布、光通量、色坐标随电流的变化情况，对其中的变化规律进行了理论分析。

The combination of the same stage light and eye shadow poses great differences in chromaticity coordinates and overall chromatics, while the combination of different stage lighting and eye shadow affects the degree of metamerism.

在同组灯光与眼影组合，显示出的色度座标与总色差皆有极大的差别，反而是不同的灯光与眼影组合，可造成视觉上同色异谱的错觉现象。

The coefficients for eliminating the thermal difference and chromatism of common infrared materials were described by Cartesian coordinates.

最后用实例说明光学被动式无热化设计的求解过程，并通过光学设计软件对结果进行分析，说明该设计结果在-40℃～+60℃温度范围内均满足消热差和像差要求。

The center coordinates of the n circles can then be obtained. The problem is reduced to a nonlinear constrained optimization problem of finding the minimum circumscribed circle for the n central points through regional optimization.

为求这平面点列的最小包容圆，将问题转化为非线性约束最优化问题，通过分区优化搜索算法求解目标。

These coordinates are scaled based on the width and height of the client area.

这些坐标是基于客户区的宽度和高度成比例的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。