Position, loading and pivot of material in addition to base plane size of material and space height.
材料位置、材料荷载大小及支点、材料基础平面尺寸、空间高度；
The position of the pivot center of the leg placement section relative to the seat base section is above the upper surface of the seat base section.
前述腿放置部相对前述座位基部的转动中心位置位于比座位基部的上面更靠上方。
The release member is pivotally mounted relative to the base member about a pivot axis.
释放元件，该释放元件相对于所述基座元件围绕枢转轴线可枢转地安装；
The release member is pivotally mounted relative to the base member about a pivot axis.
释放元件，该释放元件相对于所述基座元件围绕枢转轴线可枢转地安装；
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