框架为立方体结构，框架的上部设有平行排列的上固定杆。

The frame is a cubic structure. Anupper part of the frame is provided with upper fixed links arrayed in parallel.

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螺旋溜槽外侧设有若干个通过固定杆与固定支架连接固定的联结耳环。

The outer lateral of the spiral chute is equipped with a plurality of connection earrings which are fixedly connected with and fixing stents through fixing rods.

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包括相互铰接在一起的底座和滑动座，所述滑动座上滑动连接有固定杆。

The foldable fixed seat comprises a base and a sliding seat which are hinged together, wherein the sliding seat is connected with a fixed bar in a sliding manner.

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