Use: Test the flatness of plate, leveling ruler, machine tool working platform, guides and precision work-piece.
用途：检测平板、平尺、机床工作台、导轨和精密工件的平面度、直线度。
2
AimIn order to improve approximating precision and reliability of GPS leveling of imitated model in approximating abnormal height curved surface.
目的为了提高GPS水准的拟合模型在逼近高程异常曲面时的逼近精度和可信度。
3
The method can achieve fourth-grade leveling survey precision demand by precision analysis, and then brings forward some measure to increase observation precision.