The cause and rule of deformation of datumpoint are analysized by data of repetition. Finally, some useful conclusions and suggestions are also given.
根据复测数据分析了基准点的变形原因和规律，得出了一些有益的结论和建议。
2
This paper expounds in theory that, we may use the relative stability or their ratio caused by UNVARIABLE as the proportion of the point on datum, which accords with the demands for choice of datum.
本文从理论上阐明用不变量导出的相对稳定度函数或其比值作为点在基准中的份量是符合对基准选择之要求的。
3
Use to indicate a datum target area, line or point.