上肢上举与肩同高，连结在此高度，向前够物体(笔)并回到原位。

Reaching Forward to Retrieve an Object (pencil) Held at Shoulder Height with OutstretchedArm.

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桁梁和自身高度可调的支座用螺钉连结成稳固的下部支承系统，地板镶嵌入桁梁围成的方格内。

The stingers and the height-adjustable pedestals link by screws, to form a solid bottom-support system. Then inlaid the raised floor tile into the box surrounded by stingers.

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