这座高塔正在倾斜，在不到60米的高度内垂直偏差达到了2米。
The tower is leaning. In the height of less than 60 meters the vertical deviation accounts for almost 2 meters.
垂直偏差影响载荷在各档的分配，水平偏差影响每档载荷在左右托轮的分配。
The vertical deviation influence load distributions on every apron while horizontal influence on side wheel.
为了获得这一垂直偏差，很有必要确定当地平均海面和全球大地水准面上的重力位值。
In order to evaluate the vertical offset, it is essential to know the geopotential of the mean sea level and of the geoid as well.
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