The base is fixed near the building wall, the vertical axle line is parallel to the building wall, the distance from vertical axle line to the wall is 3m.
底座固定在建筑物墙面附近，其纵向轴心线与建筑物墙面平行，纵轴线到墙面间距为3米。
The base is fixed near the building wall, the vertical axle line is parallel to the building wall, the distance from vertical axle line to the wall is 3m.
底座固定在建筑物墙面附近，其纵向轴心线与建筑物墙面平行，纵轴线到墙面间距为3米。
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