面坐标

A+bx+cy , X=0, Y=0 It satisfies the compatibility equation 4 φ=0 find the stress components by σx=2φ/y2=0 σy= 2φ/x2=0 τxy=-2φ/xy=0 find the surface force components bys=X=0s =Y=0 σστ a linear stress function corresponds to the case of no surface forces and no stress .

a+bx+cy ， X=0 Y=0 满足相容方程 4 φ=0 由下式求出应力分量σx=2φ/y2=0 σy= 2φ/x2=0 τxy=-2φ/xy=0 由下式对给定坐标的物体求出面力分量s=X=0s =Y=0 σστ确定所设定的φ能解决的问题为：任意物体无确定所设定的能解决的问题为：体力，无面力，无应力。

The algorithm of circular interpolation for machining space curved face on the three-coordinate NC milling machine by ball-end milling is described.

论述了在三坐标数控铣床上采用球头铣刀铣削空间复杂形面时圆弧插值的计算方法。

A method of using CMM to measure roller gear cam is researched, and the roller gear cam are measured after learning the method.

利用辽宁工学院汽车学院现有的三坐标测量机设备，对弧面分度凸轮进行了实体测量。

Based on the 3D solid model, the changing trend of spiral angle and pressure angle of pitch cone, the thickness-changing trend of face and pitch cone can be analyzed. In addition, the method of cutting tooth on general NC machining center and the measurement of tooth flank geometry on 3D CMM are conducted.

根据锥齿轮切齿仿真所获得的三维几何模型，本文还研究了在通用四轴联动加工中心上加工锥齿轮齿形的方法和在通用三坐标测量机上进行锥齿轮齿面几何形状误差测量及数据处理方法。

Reformed light MQ6025A universal tool grinder can realize 2-coordinate linkage machining of special type surface of revolution cutting tool.

通过简单改造的MQ6025A轻型万能工具磨床，可实现两坐标联动加工特种回转面刀具。

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。