Considering its direct influence on controlling the top elevation of anchor bolts, the establishment of levelingpoint is also a very important procedure.
水准点的设立同样相当重要，它直接影响到地脚螺栓顶部标高的控制。
2
The paper introduces the theory, methods and ways to be realized upon how to strengthen and improve the leveling network of astronomy and gravity with the application of GPS levelingpoint.
介绍如何利用GPS水准点加强和改善天文重力水准网的原理、方法及实现的途径。
3
The optical structure of focus and level system was introduced, and a mathematical model for single-point measurements of height and focusing and leveling was set up.