Through using actual GPS leveling fitting data in a large-scale area, it introduces the application of optimum function model choice and the related analysis method.
文中通过一个大测区GPS水准实测数据，说明拟合模型优选准则的应用以及具体分析方法。
2
In high-end alkali zinc used as an agent, leveling walk agent, can make the high and low area thick thin uniform.
在高档碱锌用作走位剂，整平剂，能使高低区厚薄均匀一致。
3
The traditional geometrical leveling is inconvenient in fluctuating area.