At the top of the frame, the jointed appendages of the station's robotic manipulator arm Dextre appear in silhouette.
在画面的顶部，空间站的机械操纵臂Dextre的连接附属部分显露出了轮廓。
2
The arm and shoulder rotation stretch warms up the muscle that surrounds the shoulder jointed the body. These muscles are used continuously during swimming.
手臂和肩膀的旋转伸展动作帮助肩部及其联接躯干的肌肉群充分热身。游泳时将连续不停的运用这些肌肉。
3
Filling barrel was accomplished by semiautomatic filler machine and jointed filling arm, and the filling arm can reach the four barrels in turn.