Reading this property returns the current vertical offset.
读取此属性将返回当前垂直偏移。
Setting this property causes the text editing control to scroll to the specified vertical offset.
设置此属性会导致文本编辑控件滚动到指定的垂直偏移。
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.
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.
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。
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