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1·The influence of leveling staff error on the data of vertical crust deformation is discussed.

讨论水准标尺误差在垂直形变资料中的影响。

2·The positioning algorithm was studied of the triple sinusoidal bar code staff used in digital leveling to accomplish automatic staff reading.

研究了三正弦码标尺应用于电子水准测量中实现标尺自动化读数的定位算法。