Use to add up to 4 vertical baseline dimensions.

用于添加多达4个垂直坐标尺寸。

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Firstly a geometrical model of spatial baseline is constructed, and the definitions of vertical baseline, effective baseline and along-track baseline are presented.

首先建立了空间基线的几何模型，定义了垂直基线、有效基线和水平基线。

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Use to add up to 4 vertical ordinate dimensions. Attach one endpoint to baseline and one to first feature.

用于添加多达4个垂直坐标尺寸。将一个端点连接到基准线，一个端点连接到第一个部件。

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