The transforming of survey datum and the control of axis, vertical level, elevation are of great importance on controlling quality of high-rise building construction.
在高层及超高层建筑工程中，测量基准传递和轴线、垂直度、高程控制是建筑物施工质量控制的重点内容之一。
Some key techniques, such as attitude correction, quality control of GPS height, transformation of vertical reference datum and extraction of tidal level, are studied in detail.
这些关键问题主要有姿态改正、GPS高程质量控制、垂直基准转换、基于信号的在航潮位提取。
应用推荐