建立基准的

The observation equation built in this paper is nonlinear. After linea-rization, it can be seen that, the error of the angular sensor on ESG's outer gimbal axis is equal to the azimuth error of ESG, while that on ESG's inner gimbal is coupled from the elevation and the azimuth errors of ESG.

本论文所建立的量测方程是非线性的，其在标称状态的线性化方程表明：静电陀螺外框架轴上的角度传感器的输出误差等于陀螺主轴的方位角误差，内框架轴上的角度传感器的输出误差包括陀螺主轴的高度角误差和方位角误差的耦合量，其中方位角误差的耦合分量是由复示水平基准误差引起的。

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。