The articulation of the radius and ulna in the arm is a pivot joint.
手臂桡骨和尺骨的连接关节是一个枢轴关节。
Behind this bone, the radius - a lower arm bone in line with the carpometacarpus - was unusually thick compared to the relatively slender companion bone, the ulna.
在这块骨骼后面，桡骨——下臂与手carpometacarpus的联接部分——要比尺骨厚的多(与桡骨类似但相对较细的部分)。
This setup shows the radius on the end of the rocker arm brackets being cut using the rotary table.
这表明，半径设置的结束摇臂括号被削减使用转盘。
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