In this paper, using method of the least squares, optimized calculation of earthwork for leveling up construction site is discussed.

应用最小二乘法，研究了建筑场地平整土方量的优化计算，并以实例说明该法是实用可行的。

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Use method of the least squares to build function relation between temperature and pressure, the space camber compensation method is realized and makes THD measuring error least.

利用最小二乘法，建立过热蒸汽的密度与温度、压力之间的函数关系，实现过热蒸汽的空间曲面补偿法，力求测量误差达到最小。

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Compute the distance from each data sample to the cluster center (our randomly selected data row), using the least-squares method of distance calculation.

计算从每个数据样例到群集中心(我们随意选中的数据行)的距离，使用距离计算的最小平方法。

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