upright type

The most ancient form of megalithic construction may be the dolmen, a type of burial chamber consisting of several upright supports and a flat roofing slab.

最古老形式的史前巨石建筑可能是石室冢墓，这是一种由数个直立的支撑物和一个平坦的屋顶构成的石室墓葬。

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The entire door type scaffold is characterized in that the connecting bar and the upright rod are welded together through a welding hole on the upper end of the upright rod;

它包括立杆、连接棒、安全销，其特征：通过立杆上端的焊接孔，将连接棒和立杆焊接在一起；

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The utility model discloses an elevated type basketball stand suitable for middle and elementary schools, and comprises a rim, a backboard, a crossbeam, an upright column, and a bottom seat.

本实用新型公开了一种适用于中小学校中使用的可升降式篮球架。

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