With the addition of the chair model, the JACE Shoulder chair CMP achieves internal and external rotation as well as elevation (forward flexion).

凭借椅子一样外型，该产品可以实现内部和外部的轮换以及提升（向前弯曲）。

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Inset: illustrating the stretch of the external rotators of the shoulder through internal rotation of the humerus.

插图：说明了肱骨内旋中的肩关节外旋伸展。

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Travel Keyboard makes better use of limited space environments, and allows for external mice to be placed even closer to the keyboard, reducing shoulder pain and increasing comfort.

便携键盘的紧凑性更好地利用了有限的空间环境，甚至可以在键盘附近额外放置一个鼠标，减少肩膀疼痛，增加舒适性。

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