The most commonly used prostheses are body-powered, which capture remaining shoulder motion with a harness and transfer this movement through a cable to operate the hand, wrist, or elbow.

最常使用的义肢是由身体驱动的，它可通过一个固定带捕获残剩的肩膀运动，并将该运动通过一个电缆进行转换来操作手、腕或肘部。

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This system realizes the process of modeling, data transfer and animation demonstration etc. , by a man-machine interaction mode. The interface is simple and intuitive to operate, and easy to master.

该系统以人机交互的方式实现了建模、数据传输和动画演示全部过程，界面操作简单直观，便于掌握和运用。

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A number of pieces of instrument designed for gene transfer made the technique more efficient and easier to operate.

用于基因转移的仪器、设备使这一技术更有效、更简便。

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People wishing to use it will need to have sufficient upper-body strength to operate the locking catch and - if using a folding wheelchair - be able to unfold it and transfer in and out of their vehicle.

BBC: Roadshow reveals disability aids